Most crypto buyers nonetheless obsess over worth charts. However in 2026, a rising share of consideration is shifting again to enhancing 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 onerous fork final Friday in a bid to streamline the community, with a local token customary and shorter withdrawal home windows.
Bitcoin growth nevertheless, 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, instructed Cointelegraph that protocol upgrades have traditionally targeted on including options, pace and throughput.
Nevertheless, 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 below are the highest 5 main blockchain upgrades to look at within the second half of 2026.
Ethereum: Glamsterdam
Glamsterdam is arguably probably the most consequential improve this 12 months, 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, increase capability so Ethereum can deal with extra information at larger throughput, and cut back database bloat. These modifications ought to make the chain higher suited to stablecoin settlement and real-world asset use circumstances, he stated.
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Holly Atkinson, chief product and expertise officer at 1inch, instructed 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 depend 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 drag 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 instructed Cointelegraph that ePBS is healthier understood as one step in Ethereum’s broader roadmap and doesn’t remove MEV or absolutely remedy builder centralization. “Practices like sandwich assaults might due to this fact migrate quite than disappear,” she stated.
Solana: Alpenglow
Solana’s greatest change this 12 months 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 permitted by way of a governance course of in September 2025, Alpenglow stays underneath growth however is anticipated 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, instructed Cointelegraph that Alpenglow shall be a serious tailwind that can reinforce the ‘web capital markets’ thesis much more strongly.
Solana Community Updrades. Supply: Solana
At its core, Alpenglow is designed to dramatically pace up how shortly the community reaches finality. As a substitute of counting on Solana’s present 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 influence 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 as we speak.
Past pace, the improve additionally removes onchain vote transactions, which presently 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 underneath load.
Hadley Stern, board director, DeFi Growth Corp, instructed 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 trustworthy telemetry, which issues once 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 sort of “ruled adaptability legacy monetary infrastructure cannot match.”
Base: Beryl
Base’s Beryl onerous fork went reside on Friday, following a brief sequencer-related outage, when block manufacturing stalled for round two hours following an invalid block that triggered a brief consensus failure.
Base co-founder Jesse Pollak stated person funds have been unaffected in the course of the incident. Whereas he burdened that “all funds are secure,” he added that “a halt isn’t okay” and stated that classes discovered from the episode shall be used to additional strengthen Base as a platform for “international, 24/7 finance.”
Jesse Pollak speaks in regards to the chain halt. Supply: Jesse Pollak
Based on Base’s documentation, Beryl introduces a set of modifications geared toward tightening the community’s efficiency and lowering friction on the edges. These embrace the B20 native token customary, 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 enhancing execution effectivity.
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Solar stated Base has been shifting towards a extra unified “stack” strategy, giving it higher management over how the community is constructed and upgraded, and permitting modifications to ship extra shortly than underneath 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 turn into extra fragmented, whilst Base deepens its integration with Coinbase’s wider person base.
Avalanche: Octane
Avalanche’s subsequent chapter is much less a few single branded onerous fork than a broader push to enhance efficiency whereas courting establishments and tokenized asset issuers.
Solar instructed Cointelegraph that Avalanche’s current Etna onerous fork changed the outdated subnet mannequin with sovereign Avalanche L1s, chopping the price of launching a devoted blockchain by greater than 99% and making the community extra engaging 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 belongings 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 also be pushing two upgrades geared 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 approach 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 needs 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 greatest developments in 2026 should not scheduled upgrades however a continuation of passionate debates over whether or not the protocol ought to turn into extra programmable and the way urgently it needs to be hardened in opposition to quantum threats.
Bitcoin has not activated a serious comfortable 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 corresponding to 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 corresponding to Lightning and Ark, whereas giving establishments extra programmable custody logic immediately on the L1.
Bitcoin growth is infamously sluggish, and any change to the protocol is pored over from each angle. There’s normal settlement that no covenant opcode is on observe for activation this 12 months, and reaching consensus on proposals like OP_CAT or CTV remains to be a ways 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 underneath optimistic assumptions. It appears unlikely at this level {that a} quantum-resistance improve shall be carried out earlier than the tip of 2026.
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