Firo v0.14.16.1 is a mandatory release. All users must update to this version even if they have already updated to v0.14.16.0. All wallets, full nodes, and masternodes must be updated prior to block 1,329,000 (approximately 22 June 2026).
As always, please backup your wallet before updating.
Download the latest release here: https://github.com/firoorg/firo/releases/tag/v0.14.16.1
What’s New
Spark Name Overflow Fix
This release resolves an overflow bug in Spark Name handling that was present in v0.14.16.0. The fix is the primary reason this follow-up release is mandatory - all users on v0.14.16.0 must update to ensure correct Spark Name behavior at and beyond the activation block.
Minor Spark Name Vulnerability Fix
Fixes a minor vulnerability where a Spark Name transfer permission could remain valid indefinitely. Transfer permissions now expire correctly, limiting the window in which they can be used.
Receive Request Model Fix
Fixes crashes in the receive request dialog and incorrect handling of recent request history in the Qt wallet.
Spark Address Book Refresh Fix
Fixes a bug where Spark address book options could remain unavailable after syncing past the Spark activation block, requiring a wallet restart to resolve. The wallet now correctly detects activation even when the sync jumps past the exact activation height.
Lelantus Strip
Internal cleanup work removing legacy Lelantus components as the protocol continues to consolidate around Lelantus Spark.
Update Deadline
This is a mandatory update that supersedes v0.14.16.0. All wallets, full nodes, and masternodes must be updated to v0.14.16.1 before block 1,329,000, approximately 22 June 2026. This applies even if you recently updated to v0.14.16.0.
Download
Binaries are available for Linux, macOS, and Windows on the GitHub releases page.