Update CHANGELOG and changelogs

Signed-off-by: Friedrich Gonzalez <1517449+friedrichg@users.noreply.github.com>

Author: friedrichg

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 Order should be `CHANGE`, `FEATURE`, `ENHANCEMENT`, and `BUGFIX`
 
+## v0.19.0
+* [CHANGE] Upgrade cortex to v1.19.1
+* [CHANGE] Upgrade Go to 1.23
+* [CHANGE] Upgrade golangci-lint to v1.64
+
 ## v0.18.0
 * [CHANGE] Upgrade cortex to v1.18.1
 * [FEATURE] Add kubeconfig-style configuration file support #50

changelogs/v0.19.0.md

@@ -0,0 +1,35 @@
+# v0.19.0 Release
+
+## Changes
+
+* [CHANGE] Upgrade cortex to v1.19.1
+* [CHANGE] Upgrade Go to 1.23
+* [CHANGE] Upgrade golangci-lint to v1.64
+
+## Installation
+
+## cortextool
+
+```console
+# download the binary (adapt os and arch as needed)
+$ curl -fSL -o "cortextool" "https://github.com/cortexproject/cortex-tools/releases/download/v0.19.0/cortextool_0.19.0_linux_x86_64"
+
+# make it executable
+$ chmod a+x "cortextool"
+
+# have fun :)
+$ ./cortextool --help
+```
+
+## benchtool
+
+```console
+# download the binary (adapt os and arch as needed)
+$ curl -fSL -o "benchtool" "https://github.com/cortexproject/cortex-tools/releases/download/v0.19.0/benchtool_0.19.0_linux_x86_64"
+
+# make it executable
+$ chmod a+x "benchtool"
+
+# have fun :)
+$ ./benchtool --help
+```