From fe948007831d2f077cd61bcdf3520a16baa2f450 Mon Sep 17 00:00:00 2001
From: David Hartunian <davidh@cockroachlabs.com>
Date: Mon, 28 Aug 2023 09:55:07 -0400
Subject: [PATCH] Downgrade go version requirement to 1.19

Previously, we had upgraded this library to be compatible with a
number of features introduced in go 1.20. Our compatibility with the
multi-cause errors does not depend on those features being available
in the stdlib so the requirement in go.mod is being downgraded to
1.19.

This removes the need for an older compatibility branch released as
version 1.10.1 of this library.

Go 1.20 features are only necessary to run tests. GitHub actions are
adjusted to additionally test for a successful build on 1.19.
---
 .github/workflows/ci.yaml | 17 +++++++++++++++++
 go.mod                    |  2 +-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ec321dc..286fe30 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -7,7 +7,24 @@ on:
     branches: [ master ]
 
 jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go:
+          - "1.18"
+          - "1.19"
+          - "1.20"
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go (${{ matrix.go }}
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ matrix.go }}
 
+      - name: Build (${{ matrix.go }})
+        run: go build ./...
   build-and-test:
     runs-on: ubuntu-latest
     strategy:
diff --git a/go.mod b/go.mod
index 3b77354..d8954fb 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/cockroachdb/errors
 
-go 1.20
+go 1.19
 
 require (
 	github.com/cockroachdb/datadriven v1.0.2