# Set up local Git repository

$ git clone [email protected]:hashicorp/go-cty.git hashicorp-go-cty
$ cd hashicorp-go-cty
$ git remote add upstream [email protected]:zclconf/go-cty.git --no-tags

$ git remote -v
origin	[email protected]:hashicorp/go-cty.git (fetch)
origin	[email protected]:hashicorp/go-cty.git (push)
upstream	[email protected]:zclconf/go-cty.git (fetch)
upstream	[email protected]:zclconf/go-cty.git (push)

# Find commit refs for the current version and the next version

$ git ls-remote upstream refs/tags/v1.4.1^{}
c1fac28a50c9c3cdbbad888b289e2928a790015b	refs/tags/v1.4.1^{}

$ git ls-remote upstream refs/tags/v1.4.2^{}
e4e179713c4787a2b3837353fde2c1fe38bebe22	refs/tags/v1.4.2^{}

# Apply the commits to a new branch

$ git log --oneline c1fac28a50c9c3cdbbad888b289e2928a790015b..e4e179713c4787a2b3837353fde2c1fe38bebe22
e4e1797 v1.4.2 release
dd574de Update CHANGELOG.md
e76fe06 function/stdlib: jsonencode should produce a string representation of null
6e20bc2 Prepare CHANGELOG for a forthcoming 1.4.2 release

$ git log --oneline --format=%h --reverse c1fac28a50c9c3cdbbad888b289e2928a790015b..e4e179713c4787a2b3837353fde2c1fe38bebe22
6e20bc2
e76fe06
dd574de
e4e1797

$ git checkout -b forward-to-1.4.2
$ git cherry-pick $(git log --oneline --format=%h --reverse c1fac28a50c9c3cdbbad888b289e2928a790015b..e4e179713c4787a2b3837353fde2c1fe38bebe22) # and resolve conflicts in CHANGELOG.md

$ # Update CHANGELOG.md

# Verify

## Check module name in Go files
$ ag zclconf -G '.go$'

## Inspect diff
$ git diff -U0 e4e179713c4787a2b3837353fde2c1fe38bebe22..HEAD

## Inspect simpler diff
git diff -U0 --ignore-matching-lines 'github.com/(hashicorp|zclconf)/go-cty' e4e179713c4787a2b3837353fde2c1fe38bebe22..HEAD -- . ':(exclude).github/CODEOWNERS'

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3767291..ac175df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1 +1 @@
-# 1.4.2 (May 29, 2020)
+# 1.4.2 (Unreleased)
@@ -5 +6 @@
-# 1.4.1 (May 18, 2020)
+# 1.4.1 (March 5, 2025)
diff --git a/cty/function/stdlib/string.go b/cty/function/stdlib/string.go
index 01ebc47..60e0ab5 100644
--- a/cty/function/stdlib/string.go
+++ b/cty/function/stdlib/string.go
@@ -154 +153,0 @@ var SubstrFunc = function.New(&function.Spec{
-