Deep Dive
1. Repository Archived (27 August 2025)
Overview: The original Zilliqa core repository (Zilliqa/zq1) was officially archived, making it read-only. This signifies the culmination of the Zilliqa 1.0 development era as focus shifted entirely to the new Zilliqa 2.0 architecture.
The archive notice is a definitive endpoint for the legacy codebase. All development activity and commits in this repository ceased, with the final commits dating back to November 2023. This is a procedural step following a major network upgrade.
What this means: This is neutral for ZIL as it reflects a planned technological transition rather than abandonment. It confirms that the old chain's development is complete and all future innovation is happening within the new Zilliqa 2.0 codebase.
(GitHub)
2. Zilliqa 2.0 Mainnet Launch (June 2025)
Overview: This was not a minor update but a full network replacement. Zilliqa 2.0 launched with a new Rust-based implementation, shifting from energy-intensive Proof-of-Work to efficient Proof-of-Stake consensus.
The upgrade introduced a modular six-pillar architecture including customizable x-shards, cross-chain communication, and smart accounts. It achieved a block time reduction from 30 seconds to about 1.5 seconds, with transaction finality in roughly 5 seconds.
What this means: This is bullish for ZIL because it makes the network faster, significantly more energy-efficient, and fully compatible with the vast Ethereum developer toolkit. It fundamentally upgrades the chain's capability to handle modern applications.
(CoinMarketCap)
3. Mainnet Upgrade v0.19.0 (17 November 2025)
Overview: This was a scheduled hard fork for the new Zilliqa 2.0 network. It introduced two key improvements to the staking system, requiring all validators to update their nodes.
The changes reduced the stake unbonding period from 14 days to 7 days and implemented a jailing mechanism for validators who fail to propose blocks, which improves overall network liveness and reliability.
What this means: This is bullish for ZIL because it provides greater flexibility for stakers, allowing them to access their funds faster, and enhances network security by penalizing inactive validators. It refines the user experience of the new PoS system.
(Zilliqa)
Conclusion
Zilliqa's development trajectory is firmly centered on its new, modular Zilliqa 2.0 architecture, with recent mandatory upgrades refining its Proof-of-Stake mechanics. How will the network's improved performance and EVM compatibility drive the next wave of developer adoption?