What the developer wrote
Authored by Vasil Dimov
doc: add release notes for 29415
What changed, and why it matters
This commit only adds documentation: a release note describing a previously merged privacy feature (PR #29415). It does not change any code, so it cannot introduce or fix a security vulnerability on its own. The feature it describes lets users optionally broadcast transactions only over Tor or I2P to hide their IP address and avoid linking separate transactions.
No security action needed; this is a documentation-only commit. Review the actual implementation in PR #29415 separately if a security assessment of the -privatebroadcast feature is required.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The diff creates doc/release-notes-29415.md, a 14-line release note for Bitcoin Core PR #29415. The note documents a new -privatebroadcast boolean option for the sendrawtransaction RPC that restricts transaction broadcast to Tor/I2P peers. There are no code changes, configuration defaults, protocol changes, or logic modifications in this commit.
Changed components
doc/release-notes-29415.mdInspect captured patch +14 / −0
diff --git a/doc/release-notes-29415.md b/doc/release-notes-29415.md
new file mode 100644
index 00000000..d5040a31
--- /dev/null
+++ b/doc/release-notes-29415.md
@@ -0,0 +1,14 @@
+P2P and network changes
+-----------------------
+
+- Normally local transactions are broadcast to all connected peers with
+ which we do transaction relay. Now, for the `sendrawtransaction` RPC
+ this behavior can be changed to only do the broadcast via the Tor or
+ I2P networks. A new boolean option `-privatebroadcast` has been added
+ to enable this behavior. This improves the privacy of the transaction
+ originator in two aspects:
+ 1. Their IP address (and thus geolocation) is never known to the
+ recipients.
+ 2. If the originator sends two otherwise unrelated transactions, they
+ will not be linkable. This is because a separate connection is used
+ for broadcasting each transaction. (#29415)
Why this scored 15/100
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