Most crypto traders nonetheless obsess over value charts. However in 2026, a rising share of consideration is shifting again to bettering the basics of the protocols.
Ethereum, Solana and Avalanche are getting ready a few of their largest protocol upgrades in years, whereas Coinbase’s Base community rolled out its Beryl laborious fork final Friday in a bid to streamline the community, with a local token commonplace and shorter withdrawal home windows.
Bitcoin growth nonetheless, stays frozen, with builders nonetheless arguing over controversial covenant proposals and post-quantum computing upgrades.
Tim Solar, a senior researcher at Hong Kong-based asset supervisor HashKey Group, informed Cointelegraph that protocol upgrades have traditionally targeted on including options, velocity and throughput.
Nonetheless, in 2026, he stated the emphasis is shifting towards reliability, predictable governance, and institutional-grade infrastructure that may help large-scale monetary use circumstances.
Listed here are the highest 5 main blockchain upgrades to observe within the second half of 2026.
Ethereum: Glamsterdam
Glamsterdam is arguably essentially the most consequential improve this yr, and its already being examined on devnets. Based on Ethereum’s public roadmap, Glamsterdam is designed to enhance scalability, harden the layer-1, and make the community simpler to make use of, with a mainnet launch anticipated someday within the second half of 2026.
Solar stated the improve ought to enhance processing speeds by permitting extra transactions to be processed concurrently, develop capability so Ethereum can deal with extra information at larger throughput, and scale back database bloat. These modifications ought to make the chain higher fitted to stablecoin settlement and real-world asset use circumstances, he stated.
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Holly Atkinson, chief product and expertise officer at 1inch, informed Cointelegraph that Glamsterdam is seen by many as Ethereum’s most vital improve since The Merge in September 2022, which transitioned the blockchain from proof-of-work to proof-of-stake.
Glamsterdam. Supply: Ethereum.org
She stated enshrined proposer-builder separation (ePBS) is a key change as a result of most validators nonetheless rely upon a small set of specialised builders and relays, which concentrates management over transaction ordering.
That setup amplifies maximal extractable worth (MEV), censorship and centralization dangers, she stated. ePBS is designed to tug block constructing and proposing again into the protocol and make the method extra clear and accountable.
Pavan Kaur is a Solana Basis decide and founding father of RuleSpark, a compliance engine for digital asset advertising. She informed Cointelegraph that ePBS is healthier understood as one step in Ethereum’s broader roadmap and doesn’t get rid of MEV or absolutely remedy builder centralization. “Practices like sandwich assaults might due to this fact migrate reasonably than disappear,” she stated.
Solana: Alpenglow
Solana’s largest change this yr is Alpenglow, a consensus improve that reworks the community’s core protocol. Alpenglow has been billed by many, together with Solana ecosystem lead David Liang, because the chain’s “most vital consensus improve but.”
After being overwhelmingly authorised by a governance course of in September 2025, Alpenglow stays beneath growth however is predicted to ship alongside the Agave 4.1 validator shopper launch later in 2026.
Arun Krishnakumar, vp of institutional capital at R3 enterprise software program agency, informed Cointelegraph that Alpenglow might be a serious tailwind that may reinforce the ‘web capital markets’ thesis much more strongly.
Solana Community Updrades. Supply: Solana
At its core, Alpenglow is designed to dramatically velocity up how shortly the community reaches finality. As an alternative of counting on Solana’s current TowerBFT-based consensus mechanism, it introduces a redesigned system constructed round a brand new voting element referred to as Votor.
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The sensible impression is a serious discount in affirmation occasions, with finality focused at roughly 100-150 milliseconds in optimum circumstances, in comparison with round 12.8 seconds at present.
Past velocity, the improve additionally removes onchain vote transactions, which at the moment account for a good portion of community exercise. By streamlining how validators talk and agree on the state of the chain, Alpenglow is meant to make Solana each lighter and extra environment friendly beneath load.
Hadley Stern, board director, DeFi Improvement Corp, informed Cointelegraph that eradicating onchain vote transactions is the “actual story” for institutional allocators as a result of it “cleans up validator economics and provides you sincere telemetry, which issues if you’re underwriting SOL as a treasury asset.”
He stated {that a} community that may migrate its consensus layer as cleanly as is deliberate, would present the form of “ruled adaptability legacy monetary infrastructure cannot match.”
Base: Beryl
Base’s Beryl laborious fork went dwell on Friday, following a brief sequencer-related outage, when block manufacturing stalled for round two hours following an invalid block that triggered a short lived consensus failure.
Base co-founder Jesse Pollak stated person funds had been unaffected through the incident. Whereas he confused that “all funds are protected,” he added that “a halt is just not okay” and stated that classes discovered from the episode might be used to additional strengthen Base as a platform for “international, 24/7 finance.”
Jesse Pollak speaks concerning the chain halt. Supply: Jesse Pollak
Based on Base’s documentation, Beryl introduces a set of modifications aimed toward tightening the community’s efficiency and decreasing friction on the edges. These embody the B20 native token commonplace, a shortening of withdrawal finality from seven days to 5, and integration with Reth V2, which is predicted to scale back node storage necessities whereas bettering execution effectivity.
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Solar stated Base has been transferring towards a extra unified “stack” method, giving it better management over how the community is constructed and upgraded, and permitting modifications to ship extra shortly than beneath the sooner Optimism Superchain mannequin.
The trade-off, he stated, is that liquidity, which as soon as moved extra freely throughout the broader Superchain ecosystem, might develop into extra fragmented, at the same time as Base deepens its integration with Coinbase’s wider person base.
Avalanche: Octane
Avalanche’s subsequent chapter is much less a couple of single branded laborious fork than a broader push to enhance efficiency whereas courting establishments and tokenized asset issuers.
Solar informed Cointelegraph that Avalanche’s latest Etna laborious fork changed the previous subnet mannequin with sovereign Avalanche L1s, reducing the price of launching a devoted blockchain by greater than 99% and making the community extra enticing to institutional gamers.
It is already seen success on this regard. Solar pointed to Progmat, which he stated accounts for roughly 63% of Japan’s nationwide safety token market, which migrated greater than $2 billion in tokenized property to a devoted Avalanche L1, in addition to the Avalanche Funds Collective backed by companies together with Franklin Templeton, VanEck and WisdomTree.
Progmat Migrates $2B+ of its Tokenized Securities to Avalanche. Supply: Avalanche
Atkinson stated Avalanche can be pushing two upgrades aimed toward making its C-Chain one of many quickest Ethereum Digital Machine (EVM) environments.
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She described Streaming Asynchronous Execution as a strategy to separate transaction execution from consensus so the chain can run extra constantly and dimension capability nearer to regular demand. For customers, she stated, the sensible impact ought to be larger throughput and decrease, steadier charges during times of heavy exercise.
Bitcoin: OP_CAT
Bitcoin is the outlier right here as a result of its largest developments in 2026 should not scheduled upgrades however a continuation of passionate debates over whether or not the protocol ought to develop into extra programmable and the way urgently it ought to be hardened in opposition to quantum threats.
Bitcoin has not activated a serious mushy fork since Taproot in 2020, which upgraded Bitcoin’s scripting to make transactions extra versatile and enhance privateness.
Since then, dialogue round covenant-related proposals reminiscent of OP_CAT, CheckTemplateVerify (CTV) and Lightning-focused concepts like LNHANCE has intensified. None of those modifications has an agreed path to activation.
Researchers have additionally been debating BIP-360 and associated proposals as methods to make it simpler emigrate cash into quantum-resistant spending paths, if and when the quantum computing menace turns into actual.
Atkinson described Bitcoin because the wildcard of the group. She stated covenant proposals might unlock safer storage and richer scripting, however the topic stays divisive and topic to a lot debate.
Solar stated these proposals might enhance self-custody safety, price administration and protocols reminiscent of Lightning and Ark, whereas giving establishments extra programmable custody logic instantly on the L1.
Bitcoin growth is infamously gradual, and any change to the protocol is pored over from each angle. There may be basic settlement that no covenant opcode is on monitor for activation this yr, and reaching consensus on proposals like OP_CAT or CTV remains to be far away.
On the post-quantum facet, BIP-360’s authors estimate {that a} full migration to quantum-resistant addresses and signatures would take years even beneath optimistic assumptions. It appears unlikely at this level {that a} quantum-resistance improve might be carried out earlier than the top of 2026.
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