diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
index 93523f5..a2d2430 100644
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -10,6 +10,9 @@
 
 - Upgrade to cimgui / imgui 1.74
 - Bump minimum Rust version to 1.38 (at least backtrace crate requires it)
+- Upgrade to glium 0.26 / winit 0.21
+- Switch imgui-winit-support to 0.20+ by default. Winit 0.19 support is still
+  available via the `winit-19` feature flag
 
 ### Removed
 
diff --git a/Cargo.toml b/Cargo.toml
index 991010f..bf816d2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ exclude = [
 
 [dependencies]
 bitflags = "1.0"
-glium = { version = "0.25", default-features = false, optional = true }
+glium = { version = "0.26", default-features = false, optional = true }
 gfx = { version = "0.18", optional = true }
 imgui-sys = { version = "0.3.0-pre", path = "imgui-sys" }
 lazy_static = "1.1"
diff --git a/imgui-examples/Cargo.lock b/imgui-examples/Cargo.lock
index cdb33c2..22966c4 100644
--- a/imgui-examples/Cargo.lock
+++ b/imgui-examples/Cargo.lock
@@ -81,6 +81,16 @@ name = "byteorder"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "calloop"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio-extras 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.50"
@@ -93,10 +103,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cgl"
-version = "0.2.3"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gleam 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -130,7 +139,7 @@ dependencies = [
 
 [[package]]
 name = "cocoa"
-version = "0.18.5"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -172,6 +181,18 @@ dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "core-video-sys"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "core-foundation-sys 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "core-graphics 0.17.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "objc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.2.0"
@@ -230,6 +251,11 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "dispatch"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "dlib"
 version = "0.4.1"
@@ -266,6 +292,20 @@ name = "foreign-types-shared"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "fuchsia-zircon"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fuchsia-zircon-sys"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "gif"
 version = "0.10.3"
@@ -275,16 +315,6 @@ dependencies = [
  "lzw 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "gl_generator"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "khronos_api 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "gl_generator"
 version = "0.13.1"
@@ -296,50 +326,54 @@ dependencies = [
 ]
 
 [[package]]
-name = "gleam"
-version = "0.6.19"
+name = "gl_generator"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gl_generator 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "khronos_api 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "glium"
-version = "0.25.1"
+version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "gl_generator 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "glutin 0.21.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gl_generator 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glutin 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "takeable-option 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memoffset 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "takeable-option 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "glutin"
-version = "0.21.2"
+version = "0.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "android_glue 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "cgl 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "cocoa 0.18.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cgl 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cocoa 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-graphics 0.17.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "glutin_egl_sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "glutin_emscripten_sys 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "glutin_gles2_sys 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "glutin_glx_sys 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "glutin_wgl_sys 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glutin_emscripten_sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glutin_gles2_sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glutin_glx_sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glutin_wgl_sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libloading 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "objc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "osmesa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-client 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wayland-client 0.23.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winit 0.19.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winit 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -353,33 +387,33 @@ dependencies = [
 
 [[package]]
 name = "glutin_emscripten_sys"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "glutin_gles2_sys"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gl_generator 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gl_generator 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "objc 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "glutin_glx_sys"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gl_generator 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gl_generator 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "x11-dl 2.18.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "glutin_wgl_sys"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gl_generator 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gl_generator 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -392,7 +426,7 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.22.3"
+version = "0.22.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -411,7 +445,7 @@ name = "imgui"
 version = "0.3.0-pre"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "glium 0.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glium 0.26.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "imgui-sys 0.3.0-pre",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -422,8 +456,8 @@ name = "imgui-examples"
 version = "0.0.0"
 dependencies = [
  "clipboard 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "glium 0.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "image 0.22.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glium 0.26.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.22.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "imgui 0.3.0-pre",
  "imgui-glium-renderer 0.3.0-pre",
  "imgui-winit-support 0.3.0-pre",
@@ -433,7 +467,7 @@ dependencies = [
 name = "imgui-glium-renderer"
 version = "0.3.0-pre"
 dependencies = [
- "glium 0.25.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glium 0.26.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "imgui 0.3.0-pre",
 ]
 
@@ -449,7 +483,7 @@ name = "imgui-winit-support"
 version = "0.3.0-pre"
 dependencies = [
  "imgui 0.3.0-pre",
- "winit 0.19.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winit 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -460,6 +494,19 @@ dependencies = [
  "adler32 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "iovec"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "jpeg-decoder"
 version = "0.1.18"
@@ -469,6 +516,15 @@ dependencies = [
  "rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "kernel32-sys"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "khronos_api"
 version = "3.1.0"
@@ -479,6 +535,11 @@ name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "lazycell"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "libc"
 version = "0.2.66"
@@ -552,6 +613,56 @@ dependencies = [
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "mio"
+version = "0.6.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "mio-extras"
+version = "2.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "miow"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "net2"
+version = "0.2.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "nix"
 version = "0.14.1"
@@ -662,16 +773,6 @@ dependencies = [
  "shared_library 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lock_api 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "parking_lot"
 version = "0.10.0"
@@ -681,20 +782,6 @@ dependencies = [
  "parking_lot_core 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "parking_lot_core"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "parking_lot_core"
 version = "0.7.0"
@@ -853,12 +940,9 @@ dependencies = [
 ]
 
 [[package]]
-name = "smallvec"
-version = "0.6.13"
+name = "slab"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "smallvec"
@@ -867,7 +951,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "smithay-client-toolkit"
-version = "0.4.6"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "andrew 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -876,9 +960,8 @@ dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "memmap 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-client 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-commons 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-protocols 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wayland-client 0.23.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wayland-protocols 0.23.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -901,7 +984,7 @@ dependencies = [
 
 [[package]]
 name = "takeable-option"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -937,42 +1020,43 @@ dependencies = [
 
 [[package]]
 name = "wayland-client"
-version = "0.21.13"
+version = "0.23.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "calloop 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "downcast-rs 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-commons 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-scanner 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "wayland-sys 0.21.13 (registry+https://github.com/rust-lang/crates.io-index)",
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 "checksum parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "92e98c49ab0b7ce5b222f2cc9193fc4efe11c6d0bd4f648e374684a6857b1cfc"
-"checksum parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
-"checksum parking_lot_core 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b876b1b9e7ac6e1a74a6da34d25c42e17e8862aa409cbbbdcfc8d86c6f3bc62b"
 "checksum parking_lot_core 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7582838484df45743c8434fbff785e8edf260c28748353d44bc0da32e0ceabf1"
 "checksum percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 "checksum pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
@@ -1176,26 +1293,29 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum shared_library 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "5a9e7e0f2bfae24d8a5b5a66c5b257a83c7412304311512a0c054cd5e619da11"
-"checksum smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
+"checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44e59e0c9fa00817912ae6e4e6e3c4fe04455e75699d06eedc7d85917ed8e8f4"
-"checksum smithay-client-toolkit 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2ccb8c57049b2a34d2cc2b203fa785020ba0129d31920ef0d317430adaf748fa"
+"checksum smithay-client-toolkit 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "421c8dc7acf5cb205b88160f8b4cc2c5cfabe210e43b2f80f009f4c1ef910f1d"
 "checksum stb_truetype 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f77b6b07e862c66a9f3e62a07588fee67cd90a9135a2b942409f195507b4fb51"
 "checksum syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)" = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
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 "checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
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diff --git a/imgui-examples/Cargo.toml b/imgui-examples/Cargo.toml
index 81e1e42..ac4431a 100644
--- a/imgui-examples/Cargo.toml
+++ b/imgui-examples/Cargo.toml
@@ -11,7 +11,7 @@ publish = false
 
 [dev-dependencies]
 clipboard = "0.5"
-glium = { version = "0.25", default-features = true }
+glium = { version = "0.26", default-features = true }
 image = "0.22"
 imgui = { version = "0.3.0-pre", path = "../" }
 imgui-glium-renderer = { version = "0.3.0-pre", path = "../imgui-glium-renderer" }
diff --git a/imgui-examples/examples/color_button.rs b/imgui-examples/examples/color_button.rs
index a6fb836..390b89d 100644
--- a/imgui-examples/examples/color_button.rs
+++ b/imgui-examples/examples/color_button.rs
@@ -5,7 +5,7 @@ mod support;
 fn main() {
     let mut state = State::default();
     let system = support::init(file!());
-    system.main_loop(|run, ui| {
+    system.main_loop(move |run, ui| {
         example_selector(run, ui, &mut state);
         match state.example {
             1 => example_1(ui, &mut state),
diff --git a/imgui-examples/examples/custom_textures.rs b/imgui-examples/examples/custom_textures.rs
index e67b2ed..307044b 100644
--- a/imgui-examples/examples/custom_textures.rs
+++ b/imgui-examples/examples/custom_textures.rs
@@ -122,5 +122,5 @@ fn main() {
     my_app
         .register_textures(system.display.get_context(), system.renderer.textures())
         .expect("Failed to register textures");
-    system.main_loop(|_, ui| my_app.show_textures(ui));
+    system.main_loop(move |_, ui| my_app.show_textures(ui));
 }
diff --git a/imgui-examples/examples/hello_world.rs b/imgui-examples/examples/hello_world.rs
index b744a76..c1a7c81 100644
--- a/imgui-examples/examples/hello_world.rs
+++ b/imgui-examples/examples/hello_world.rs
@@ -4,7 +4,7 @@ mod support;
 
 fn main() {
     let system = support::init(file!());
-    system.main_loop(|_, ui| {
+    system.main_loop(move |_, ui| {
         Window::new(im_str!("Hello world"))
             .size([300.0, 100.0], Condition::FirstUseEver)
             .build(ui, || {
diff --git a/imgui-examples/examples/multiple_fonts.rs b/imgui-examples/examples/multiple_fonts.rs
index 8f182f2..f551f4e 100644
--- a/imgui-examples/examples/multiple_fonts.rs
+++ b/imgui-examples/examples/multiple_fonts.rs
@@ -18,7 +18,7 @@ fn main() {
         .renderer
         .reload_font_texture(&mut system.imgui)
         .expect("Failed to reload fonts");
-    system.main_loop(|run, ui| {
+    system.main_loop(move |run, ui| {
         Window::new(im_str!("Hello world"))
             .opened(run)
             .build(ui, || {
diff --git a/imgui-examples/examples/progress_bar.rs b/imgui-examples/examples/progress_bar.rs
index cc8ead1..f0a5868 100644
--- a/imgui-examples/examples/progress_bar.rs
+++ b/imgui-examples/examples/progress_bar.rs
@@ -4,7 +4,7 @@ mod support;
 
 fn main() {
     let system = support::init(file!());
-    system.main_loop(|run, ui| {
+    system.main_loop(move |run, ui| {
         let w = Window::new(im_str!("Progress bar"))
             .opened(run)
             .position([20.0, 20.0], Condition::Appearing)
diff --git a/imgui-examples/examples/radio_button.rs b/imgui-examples/examples/radio_button.rs
index 513da85..70e395c 100644
--- a/imgui-examples/examples/radio_button.rs
+++ b/imgui-examples/examples/radio_button.rs
@@ -5,7 +5,7 @@ mod support;
 fn main() {
     let mut state = State::default();
     let system = support::init(file!());
-    system.main_loop(|run, ui| {
+    system.main_loop(move |run, ui| {
         example_selector(run, ui, &mut state);
         match state.example {
             1 => example_1(ui, &mut state),
diff --git a/imgui-examples/examples/support/mod.rs b/imgui-examples/examples/support/mod.rs
index 57e8706..344980a 100644
--- a/imgui-examples/examples/support/mod.rs
+++ b/imgui-examples/examples/support/mod.rs
@@ -1,4 +1,7 @@
-use glium::glutin::{self, Event, WindowEvent};
+use glium::glutin;
+use glium::glutin::event::{Event, WindowEvent};
+use glium::glutin::event_loop::{ControlFlow, EventLoop};
+use glium::glutin::window::WindowBuilder;
 use glium::{Display, Surface};
 use imgui::{Context, FontConfig, FontGlyphRanges, FontSource, Ui};
 use imgui_glium_renderer::Renderer;
@@ -8,7 +11,7 @@ use std::time::Instant;
 mod clipboard;
 
 pub struct System {
-    pub events_loop: glutin::EventsLoop,
+    pub event_loop: EventLoop<()>,
     pub display: glium::Display,
     pub imgui: Context,
     pub platform: WinitPlatform,
@@ -21,13 +24,13 @@ pub fn init(title: &str) -> System {
         Some(idx) => title.split_at(idx + 1).1,
         None => title,
     };
-    let events_loop = glutin::EventsLoop::new();
+    let event_loop = EventLoop::new();
     let context = glutin::ContextBuilder::new().with_vsync(true);
-    let builder = glutin::WindowBuilder::new()
+    let builder = WindowBuilder::new()
         .with_title(title.to_owned())
-        .with_dimensions(glutin::dpi::LogicalSize::new(1024f64, 768f64));
+        .with_inner_size(glutin::dpi::LogicalSize::new(1024f64, 768f64));
     let display =
-        Display::new(builder, context, &events_loop).expect("Failed to initialize display");
+        Display::new(builder, context, &event_loop).expect("Failed to initialize display");
 
     let mut imgui = Context::create();
     imgui.set_ini_filename(None);
@@ -70,7 +73,7 @@ pub fn init(title: &str) -> System {
     let renderer = Renderer::init(&mut imgui, &display).expect("Failed to initialize renderer");
 
     System {
-        events_loop,
+        event_loop,
         display,
         imgui,
         platform,
@@ -80,47 +83,53 @@ pub fn init(title: &str) -> System {
 }
 
 impl System {
-    pub fn main_loop<F: FnMut(&mut bool, &mut Ui)>(self, mut run_ui: F) {
+    pub fn main_loop<F: FnMut(&mut bool, &mut Ui) + 'static>(self, mut run_ui: F) {
         let System {
-            mut events_loop,
+            event_loop,
             display,
             mut imgui,
             mut platform,
             mut renderer,
             ..
         } = self;
-        let gl_window = display.gl_window();
-        let window = gl_window.window();
         let mut last_frame = Instant::now();
-        let mut run = true;
 
-        while run {
-            events_loop.poll_events(|event| {
-                platform.handle_event(imgui.io_mut(), &window, &event);
+        event_loop.run(move |event, _, control_flow| match event {
+            Event::NewEvents(_) => last_frame = imgui.io_mut().update_delta_time(last_frame),
+            Event::MainEventsCleared => {
+                let gl_window = display.gl_window();
+                platform
+                    .prepare_frame(imgui.io_mut(), &gl_window.window())
+                    .expect("Failed to prepare frame");
+                gl_window.window().request_redraw();
+            }
+            Event::RedrawRequested(_) => {
+                let mut ui = imgui.frame();
 
-                if let Event::WindowEvent { event, .. } = event {
-                    if let WindowEvent::CloseRequested = event {
-                        run = false;
-                    }
+                let mut run = true;
+                run_ui(&mut run, &mut ui);
+                if !run {
+                    *control_flow = ControlFlow::Exit;
                 }
-            });
 
-            let io = imgui.io_mut();
-            platform
-                .prepare_frame(io, &window)
-                .expect("Failed to start frame");
-            last_frame = io.update_delta_time(last_frame);
-            let mut ui = imgui.frame();
-            run_ui(&mut run, &mut ui);
-
-            let mut target = display.draw();
-            target.clear_color_srgb(1.0, 1.0, 1.0, 1.0);
-            platform.prepare_render(&ui, &window);
-            let draw_data = ui.render();
-            renderer
-                .render(&mut target, draw_data)
-                .expect("Rendering failed");
-            target.finish().expect("Failed to swap buffers");
-        }
+                let gl_window = display.gl_window();
+                let mut target = display.draw();
+                target.clear_color_srgb(1.0, 1.0, 1.0, 1.0);
+                platform.prepare_render(&ui, gl_window.window());
+                let draw_data = ui.render();
+                renderer
+                    .render(&mut target, draw_data)
+                    .expect("Rendering failed");
+                target.finish().expect("Failed to swap buffers");
+            }
+            Event::WindowEvent {
+                event: WindowEvent::CloseRequested,
+                ..
+            } => *control_flow = ControlFlow::Exit,
+            event => {
+                let gl_window = display.gl_window();
+                platform.handle_event(imgui.io_mut(), gl_window.window(), &event);
+            }
+        })
     }
 }
diff --git a/imgui-examples/examples/test_drawing_channels_split.rs b/imgui-examples/examples/test_drawing_channels_split.rs
index bbe409d..f1795bd 100644
--- a/imgui-examples/examples/test_drawing_channels_split.rs
+++ b/imgui-examples/examples/test_drawing_channels_split.rs
@@ -5,7 +5,7 @@ const RED: [f32; 4] = [1.0, 0.0, 0.0, 1.0];
 
 fn main() {
     let system = support::init(file!());
-    system.main_loop(|_, ui| {
+    system.main_loop(move |_, ui| {
         let draw_list = ui.get_window_draw_list();
         // Will draw channel 0 first, then channel 1, whatever the order of
         // the calls in the code.
diff --git a/imgui-examples/examples/test_window.rs b/imgui-examples/examples/test_window.rs
index 72d1bab..66844ee 100644
--- a/imgui-examples/examples/test_window.rs
+++ b/imgui-examples/examples/test_window.rs
@@ -2,5 +2,5 @@ mod support;
 
 fn main() {
     let system = support::init(file!());
-    system.main_loop(|run, ui| ui.show_demo_window(run));
+    system.main_loop(move |run, ui| ui.show_demo_window(run));
 }
diff --git a/imgui-examples/examples/test_window_impl.rs b/imgui-examples/examples/test_window_impl.rs
index b047704..50b28e6 100644
--- a/imgui-examples/examples/test_window_impl.rs
+++ b/imgui-examples/examples/test_window_impl.rs
@@ -186,7 +186,7 @@ fn main() {
     let mut state = State::default();
 
     let system = support::init(file!());
-    system.main_loop(|run, ui| show_test_window(ui, &mut state, run));
+    system.main_loop(move |run, ui| show_test_window(ui, &mut state, run));
 }
 
 fn show_help_marker(ui: &Ui, desc: &str) {
diff --git a/imgui-glium-renderer/Cargo.toml b/imgui-glium-renderer/Cargo.toml
index 02ee484..ecf2eba 100644
--- a/imgui-glium-renderer/Cargo.toml
+++ b/imgui-glium-renderer/Cargo.toml
@@ -10,5 +10,5 @@ license = "MIT/Apache-2.0"
 categories = ["gui", "rendering"]
 
 [dependencies]
-glium = { version = "0.25", default-features = false }
+glium = { version = "0.26", default-features = false }
 imgui = { version = "0.3.0-pre", path = "../", features = ["glium"] }