From a9e8a30f4c7434aab22327339d0fa31d11ae2082 Mon Sep 17 00:00:00 2001
From: Chris Sinjakli <chris@sinjakli.co.uk>
Date: Fri, 4 Aug 2023 18:03:15 +0100
Subject: [PATCH] Prepare release 4.2.1

Signed-off-by: Chris Sinjakli <chris@sinjakli.co.uk>
---
 CHANGELOG.md                     | 17 +++++++++++++++++
 lib/prometheus/client/version.rb |  2 +-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fd8e3ee..e9ec9845 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,23 @@
 
 _None outstanding_
 
+# 4.2.1 / 2023-08-04
+
+_**Codename:** If a bug falls in the forest_
+
+## Bug fixes
+
+- [#291](https://github.com/prometheus/client_ruby/pull/291) Handle `/` in job name in
+    `Prometheus::Client::Push`:
+    Previously, if you included a `/` in your job name when using the Pushgateway client,
+    you'd get a `400` error back as we didn't encode it properly. We now base64 encode it
+    per the Pushgateway spec.
+
+    It's possible that nobody has hit this bug (`/` is fairly unlikely to appear in a job
+    name) or that the error message (a `400` from Pushgateway with a complaint about an
+    odd number of path components) didn't make it look like a bug in the Ruby client.
+    Either way, this hopefully brings us fully in line with the spec!
+
 # 4.2.0 / 2023-07-25
 
 _**Codename:** Funny number_
diff --git a/lib/prometheus/client/version.rb b/lib/prometheus/client/version.rb
index 621282e5..bea05396 100644
--- a/lib/prometheus/client/version.rb
+++ b/lib/prometheus/client/version.rb
@@ -2,6 +2,6 @@
 
 module Prometheus
   module Client
-    VERSION = '4.2.0'
+    VERSION = '4.2.1'
   end
 end