Newsletters: add 373 (2025-09-26)

Author: bitschmidty

_posts/en/newsletters/2025-09-26-newsletter.md

@@ -0,0 +1,56 @@
+---
+title: 'Bitcoin Optech Newsletter #373'
+permalink: /en/newsletters/2025/09/26/
+name: 2025-09-26-newsletter
+slug: 2025-09-26-newsletter
+type: newsletter
+layout: newsletter
+lang: en
+---
+This week's newsletter summarizes a vulnerability affecting old versions of
+Eclair and summarizes research into full node feerate settings.  Also included
+are our regular sections summarizing popular questions and answers on the
+Bitcoin Stack Exchange, announcing new releases and release candidates, and
+describing notable changes to popular Bitcoin infrastructure software.
+
+## News
+
+FIXME:harding
+
+## Selected Q&A from Bitcoin Stack Exchange
+
+*[Bitcoin Stack Exchange][bitcoin.se] is one of the first places Optech
+contributors look for answers to their questions---or when we have a
+few spare moments to help curious or confused users.  In
+this monthly feature, we highlight some of the top-voted questions and
+answers posted since our last update.*
+
+{% comment %}<!-- https://bitcoin.stackexchange.com/search?tab=votes&q=created%3a1m..%20is%3aanswer -->{% endcomment %}
+{% assign bse = "https://bitcoin.stackexchange.com/a/" %}
+
+FIXME:bitschmidty
+
+## Releases and release candidates
+
+_New releases and release candidates for popular Bitcoin infrastructure
+projects.  Please consider upgrading to new releases or helping to test
+release candidates._
+
+FIXME:Gustavojfe
+
+## Notable code and documentation changes
+
+_Notable recent changes in [Bitcoin Core][bitcoin core repo], [Core
+Lightning][core lightning repo], [Eclair][eclair repo], [LDK][ldk repo],
+[LND][lnd repo], [libsecp256k1][libsecp256k1 repo], [Hardware Wallet
+Interface (HWI)][hwi repo], [Rust Bitcoin][rust bitcoin repo], [BTCPay
+Server][btcpay server repo], [BDK][bdk repo], [Bitcoin Improvement
+Proposals (BIPs)][bips repo], [Lightning BOLTs][bolts repo],
+[Lightning BLIPs][blips repo], [Bitcoin Inquisition][bitcoin inquisition
+repo], and [BINANAs][binana repo]._
+
+FIXME:Gustavojfe
+
+{% include snippets/recap-ad.md when="2025-09-30 16:30" %}
+{% include references.md %}
+{% include linkers/issues.md v=2 issues="" %}