Liquid Network said on Sept. 9 that it has released an emergency Elements v23.3.4 update and urged all Liquid node operators to upgrade, as functional nodes were already moving to the new version. The release fixes a proof verification cache vulnerability by strengthening the cache key used for range proofs, according to the network’s notice. Liquid added that the patch has gone through multiple rounds of internal and external review involving teams including Bitcoin Red Team and Alpen Labs. The network also outlined an initial recovery plan. It intends to resume block production first while peg operations remain paused, then replay transactions that have already been verified as valid, and only restore peg operations after the network is fully recovered and funds have been returned. Blockstream is testing the first two phases in parallel, and said the order and implementation details could change depending on test results. Liquid also warned that scammers have set up fake update websites and told users to rely only on official Liquid Network and Blockstream channels, and not to send funds to unknown parties or reveal private keys or seed phrases.

Polygon Labs has issued an urgent notice after the Austin and Kyoto hard forks went live on the Polygon PoS network, warning that nodes still running outdated Bor or Heimdall clients have fallen out of consensus. According to CryptoSlate, the Austin fork activated at mainnet block 91,949,700 and requires Bor v2.1.0 or later, while the Kyoto fork activated at height 51,533,000 and requires Heimdall v0.11.0 or later. Austin addresses two Bor resource-exhaustion issues: one where L1-to-L2 bridge state sync events were not counted toward the Gas limit, which could slow block processing, and another where the TxDependency field had no size limit, potentially allowing peer nodes to be crashed. Kyoto patches a set of vulnerabilities, including deeply nested message attacks, fee coin scanning, and checkpoint signature recovery. Both hard forks are described as pure binary upgrades, meaning no state migration is required and nodes that have not forked do not need to resync. Polygon Labs urges operators of older clients to upgrade promptly and, if necessary, resume synchronization under its guidance.

Pi Network's mainnet node upgrade faces a March 1 deadline. Node version 0.5.4 is live; Pi coin rose 4.69% to $0.1718. Community split on upgrade's impact and price sustainability.

Pi Network mandates node upgrade by March 12, followed by Pi Day 2026 on March 14. Pi coin jumped 9.35% in 24h to $0.216, with 29% weekly gain. AI compatibility tests and a new token framework proposal also emerge.

PI Network said its Mainnet is moving through Protocol 22 and all validator nodes must upgrade to v22.1 before April 27, 2026. The official node page lists desktop version 0.5.4.

TRON has officially released GreatVoyage-v4.8.2, also known as Pyrrho, according to ChainCatcher. The update adds deeper compatibility with Ethereum’s Pectra and Osaka upgrades and introduces several technical changes, including the CLZ instruction and a secp256r1 signature verification precompile. It also replaces fastjson with Jackson and moves node monitoring metrics from InfluxDB to Prometheus. The release is mandatory for node operators. TRON said operators must complete the upgrade by 23:59 Singapore time on Aug. 16, 2026, or risk affecting block synchronization. The network’s Event Plugin has also been upgraded to v3.0. Nodes using the official plugin are required to upgrade the plugin first before updating the node version, while operators running self-developed plugins are advised to complete compatibility work as soon as possible. TRON said the release strengthens the network’s capabilities in smart contract compatibility, interface handling, node monitoring, and operations management.

Dogecoin has introduced the Cardinals Index Node upgrade to improve decentralization, speed, and data indexing. The update also raises expectations for smart contract-like functionality on the main chain, while fueling bullish sentiment around DOGE’s price outlook.

Pi Network has announced its 2026 node protocol upgrade schedule, culminating in v23.0 on May 18. The upgrade promises enhanced performance, security, and Web3 readiness, fueling speculation of a mainnet token launch as early as June.