From 113402286ea305a2f0c0c0712452d424113899f2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C5=91rinc?= <pap.lorinc@gmail.com>
Date: Tue, 30 Jun 2026 14:05:23 -0700
Subject: [PATCH] doc: add txospenderindex release note

Document that newly indexed `txospenderindex` entries use less disk space and that existing indexes remain readable.
Users only need to rebuild the index if they want previously indexed entries rewritten with the smaller marker.
---
 doc/release-notes-35634.md | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 doc/release-notes-35634.md

diff --git a/doc/release-notes-35634.md b/doc/release-notes-35634.md
new file mode 100644
index 00000000000..ccbd7fd7c22
--- /dev/null
+++ b/doc/release-notes-35634.md
@@ -0,0 +1,9 @@
+Indexes
+-------
+
+- The transaction output spender index (`-txospenderindex`) now stores one byte
+  less per spender entry for newly indexed blocks. Existing indexes remain
+  compatible and no action is required. To apply the same saving to entries
+  indexed before upgrading, stop the node, delete the
+  `<datadir>/indexes/txospenderindex/` directory, and restart with
+  `-txospenderindex` enabled to rebuild it.