documentation: Bump version

docs/changelog.md

@@ -1,3 +1,28 @@
+#### 1.6.0
+
+* Fixes and improvements
+
+Important changes since 1.5:
+
+* Our [Apple tvOS client](/installation/clients/sft) is now available in the App Store 🍎
+* Update BBR congestion control for TUIC and Hysteria2 **1**
+* Update brutal congestion control for Hysteria2
+* Add `brutal_debug` option for Hysteria2
+* Update legacy Hysteria protocol **2**
+* Add TLS self sign key pair generate command
+* Remove [Deprecated Features](/deprecated) by agreement
+
+**1**:
+
+None of the existing Golang BBR congestion control implementations have been reviewed or unit tested.
+This update is intended to address the multi-send defects of the old implementation and may introduce new issues.
+
+**2**
+
+Based on discussions with the original author, the brutal CC and QUIC protocol parameters of
+the old protocol (Hysteria 1) have been updated to be consistent with Hysteria 2
+
+
 #### 1.5.5
 
 * Fix IPv6 `auto_route` for Linux **1**
@@ -12,25 +37,108 @@ When `auto_route` is enabled and `strict_route` is disabled, the device can now
 
 Built using Go 1.20, the last version that will run on Windows 7, 8, Server 2008, Server 2012 and macOS 10.13 High Sierra, 10.14 Mojave.
 
+
+#### 1.6.0-rc.4
+
+* Fixes and improvements
+
+#### 1.6.0-rc.1
+
+* Add legacy builds for old Windows and macOS systems **1**
+* Fixes and improvements
+
+**1**:
+
+Built using Go 1.20, the last version that will run on Windows 7, 8, Server 2008, Server 2012 and macOS 10.13 High Sierra, 10.14 Mojave.
+
+#### 1.6.0-beta.4
+
+* Fix IPv6 `auto_route` for Linux **1**
+* Fixes and improvements
+
+**1**:
+
+When `auto_route` is enabled and `strict_route` is disabled, the device can now be reached from external IPv6 addresses.
+
 #### 1.5.4
 
 * Fix Clash cache crash on arm32 devices
 * Fixes and improvements
 
+#### 1.6.0-beta.3
+
+* Update the legacy Hysteria protocol **1**
+* Fixes and improvements
+
+**1**
+
+Based on discussions with the original author, the brutal CC and QUIC protocol parameters of
+the old protocol (Hysteria 1) have been updated to be consistent with Hysteria 2
+
+#### 1.6.0-beta.2
+
+* Add TLS self sign key pair generate command
+* Update brutal congestion control for Hysteria2
+* Fix Clash cache crash on arm32 devices
+* Update golang.org/x/net to v0.17.0
+* Fixes and improvements
+
 #### 1.5.3
 
 * Fix compatibility with Android 14
 * Fixes and improvements
 
+#### 1.6.0-beta.1
+
+* Fixes and improvements
+
+#### 1.6.0-alpha.5
+
+* Fix compatibility with Android 14
+* Update BBR congestion control for TUIC and Hysteria2 **1**
+* Fixes and improvements
+
+**1**:
+
+None of the existing Golang BBR congestion control implementations have been reviewed or unit tested.
+This update is intended to fix a memory leak flaw in the new implementation introduced in 1.6.0-alpha.1 and may
+introduce new issues.
+
+#### 1.6.0-alpha.4
+
+* Add `brutal_debug` option for Hysteria2
+* Fixes and improvements
+
 #### 1.5.2
 
 * Our [Apple tvOS client](/installation/clients/sft) is now available in the App Store 🍎
 * Fixes and improvements
 
+#### 1.6.0-alpha.3
+
+* Fixes and improvements
+
+#### 1.6.0-alpha.2
+
+* Fixes and improvements
+
 #### 1.5.1
 
 * Fixes and improvements
 
+#### 1.6.0-alpha.1
+
+* Update BBR congestion control for TUIC and Hysteria2 **1**
+* Update quic-go to v0.39.0
+* Update gVisor to 20230814.0
+* Remove [Deprecated Features](/deprecated) by agreement
+* Fixes and improvements
+
+**1**:
+
+None of the existing Golang BBR congestion control implementations have been reviewed or unit tested.
+This update is intended to address the multi-send defects of the old implementation and may introduce new issues.
+
 #### 1.5.0
 
 * Fixes and improvements