chore: support manual changelog and version 2.0 for releases (#8880)

* chore(release): add manual changelog + 2.0 support

* add comment

* fix typo

* fmt

scripts/release.sh

@@ -133,7 +133,7 @@ if ! [[ $continue_release =~ ^[Yy]$ ]]; then
 	exit 0
 fi
 
-release_notes="$(execrelative ./release/generate_release_notes.sh --old-version "$old_version" --new-version "$new_version" --ref "$ref")"
+release_notes="$(execrelative ./release/generate_release_notes.sh --check-for-changelog --old-version "$old_version" --new-version "$new_version" --ref "$ref")"
 
 read -p "Preview release notes? (y/n) " -n 1 -r show_reply
 log

scripts/release/generate_release_notes.sh

@@ -18,11 +18,16 @@ source "$(dirname "$(dirname "${BASH_SOURCE[0]}")")/lib.sh"
 old_version=
 new_version=
 ref=
+check_for_changelog=0
 
-args="$(getopt -o '' -l old-version:,new-version:,ref: -- "$@")"
+args="$(getopt -o '' -l check-for-changelog,old-version:,new-version:,ref: -- "$@")"
 eval set -- "$args"
 while true; do
 	case "$1" in
+	--check-for-changelog)
+		check_for_changelog=1
+		shift
+		;;
 	--old-version)
 		old_version="$2"
 		shift 2
@@ -61,6 +66,15 @@ if [[ -z $ref ]]; then
 	error "No ref specified"
 fi
 
+# Use a manual changelog, if present
+changelog_path="$(git rev-parse --show-toplevel)/docs/changelogs/$new_version.md"
+if [ "$check_for_changelog" -eq 1 ]; then
+	if [ -f "$changelog_path" ]; then
+		cat "$changelog_path"
+		exit 0
+	fi
+fi
+
 # shellcheck source=scripts/release/check_commit_metadata.sh
 source "$SCRIPT_DIR/check_commit_metadata.sh" "$old_version" "$ref"
 

scripts/release/tag_version.sh

@@ -118,7 +118,13 @@ minor)
 	version_parts[2]=0
 	;;
 major)
-	version_parts[0]=$((version_parts[0] + 1))
+	# Jump from v0.x to v2.x to avoid naming conflicts
+	# with Coder v1 (https://coder.com/docs/v1)
+	if [ "${version_parts[0]}" -eq 0 ]; then
+		version_parts[0]=2
+	else
+		version_parts[0]=$((version_parts[0] + 1))
+	fi
 	version_parts[1]=0
 	version_parts[2]=0
 	;;