Backwards compatibility ending for Tor versions <0.4.9 on Sept 1

The recent developments concerning the Tor network have significant implications for Bitcoin software that utilizes this system. Specifically, the initial stable release of the 0.4.9.X series on February 12, 2026, marks a crucial update. It is essential for all Bitcoin-related applications relying on Tor to upgrade to this new version. Failure to do so within the past four months could lead to operational disruptions, as older versions are no longer supported.

For further details on this transition and its broader effects, please refer to the official announcement and additional resources provided by the Tor Project at Details. This source offers comprehensive insights into the upgrade process and outlines the potential consequences for software that remains outdated.