Prepare for the next release

- crossbeam-channel 0.5.14 -> 0.5.15

Also yanking crossbeam-channel 0.5.12, 0.5.13, 0.5.14.

Author: taiki-e

crossbeam-channel/CHANGELOG.md

@@ -1,16 +1,26 @@
+# Version 0.5.15
+
+- Fix regression introduced in 0.5.12 that can lead to a double free when dropping unbounded channel. (#1187)
+
 # Version 0.5.14
 
+**Note:** This release has been yanked due to bug fixed in 0.5.15.
+
 - Fix stack overflow when sending large value to unbounded channel. (#1146, #1147)
 - Add `Select::new_biased` function. (#1150)
 - Remove inefficient spinning. (#1154)
 - Suppress buggy `clippy::zero_repeat_side_effects` lint in macro generated code. (#1123)
 
 # Version 0.5.13
 
+**Note:** This release has been yanked due to bug fixed in 0.5.15.
+
 - Add `select_biased!` macro. (#1040)
 
 # Version 0.5.12
 
+**Note:** This release has been yanked due to bug fixed in 0.5.15.
+
 - Fix memory leak in unbounded channel. (#1084)
 
 # Version 0.5.11

crossbeam-channel/Cargo.toml

@@ -4,7 +4,7 @@ name = "crossbeam-channel"
 # - Update CHANGELOG.md
 # - Update README.md (when increasing major or minor version)
 # - Run './tools/publish.sh crossbeam-channel <version>'
-version = "0.5.14"
+version = "0.5.15"
 edition = "2021"
 rust-version = "1.60"
 license = "MIT OR Apache-2.0"