diff --git a/CHANGELOG.md b/CHANGELOG.md
index f8374bb..ceec50b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -377,3 +377,17 @@
 * [BUGFIX] PromQL Engine: Include query parsing in active-query tracking. #12418
 * [BUGFIX] TSDB: Handle TOC parsing failures. #10623
 
+[1.26.0]
+* Update Prometheus to 2.47.0
+* [Full changelog](https://github.com/prometheus/prometheus/releases/tag/v2.47.0)
+* [FEATURE] Web: Add OpenTelemetry (OTLP) Ingestion endpoint. #12571 #12643
+* [FEATURE] Scraping: Optionally limit detail on dropped targets, to save memory. #12647
+* [ENHANCEMENT] TSDB: Write head chunks to disk in the background to reduce blocking. #11818
+* [ENHANCEMENT] PromQL: Speed up aggregate and function queries. #12682
+* [ENHANCEMENT] PromQL: More efficient evaluation of query with timestamp(). #12579
+* [ENHANCEMENT] API: Faster streaming of Labels to JSON. #12598
+* [ENHANCEMENT] Agent: Memory pooling optimisation. #12651
+* [ENHANCEMENT] TSDB: Prevent storage space leaks due to terminated snapshots on shutdown. #12664
+* [ENHANCEMENT] Histograms: Refactoring and optimisations. #12352 #12584 #12596 #12711 #12054
+* [ENHANCEMENT] Histograms: Add histogram_stdvar and histogram_stddev functions. #12614
+* [ENHANCEMENT] Remote-write: add http.resend_count tracing attribute. #12676
diff --git a/CloudronManifest.json b/CloudronManifest.json
index d49c890..a77e46b 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -1,6 +1,6 @@
 {
-  "version": "1.25.0",
-  "upstreamVersion": "2.46.0",
+  "version": "1.26.0",
+  "upstreamVersion": "2.47.0",
   "id": "io.prometheus.cloudronapp",
   "title": "Prometheus Server",
   "author": "Prometheus Developers",