Tezos Activates ‘Mumbai’ Upgrade Enabling More Than a Million Transactions Per Second
Tezos, a pioneering blockchain for Proof-of-Stake consensus and on-chain governance, has activated Mumbai, its thirteenth core protocol upgrade. The Mumbai upgrade introduces Smart Rollups, a new Layer 2 scaling solution built directly into the protocol, which puts Tezos at the forefront of optimistic rollup technology.
Smart Rollups enable decentralized applications (dApps) to benefit from their own dedicated hardware resources in order to process a high amount of transactions, while the integrity and security of the Smart Rollup is guaranteed by the Tezos main chain, or Layer 1.
Due to this approach, the Tezos ecosystem will be able to surpass the milestone of one million transactions per second in 2023 without sacrificing decentralization.
Secure, flexible, developer friendly
Smart Rollups come with state-of-the-art technical features, namely:
- Fully decentralized and open interactive fraud proofs guarantee rollup security and integrity, provided there is at least one honest participant in the rollup validation.
- A WebAssembly (WASM) execution environment allows for flexible development and deployment of a wide range of decentralized applications. Developers can now use general purpose programming languages such as Rust, C, and C++ to build applications ranging from tailor-made business solutions to public open platforms, such as an EVM-compatible chain on top of Tezos.
- Advanced rollup features simplify interactions such as broadcasting from Layer 1 to all rollups, calling Layer 1 smart contracts from Layer 2, or transferring assets across layers.
- New data availability solutions are possible, as Smart Rollups support custom data channels for interfacing with data providers external to the Tezos blockchain.
Lower latency, faster blockchain
Beyond rollups, Mumbai also introduces improvements to Tezos’ Layer 1. Block time is reduced from 30 to 15 seconds, which is made possible with so-called Pipelined validation. This change reduces network latency and provides a smoother user experience overall.
The protocol upgrade also includes updates to previously existing features, such as Tickets, which become more flexible by allowing direct transfers between users.
Evolution driven by the community
As with every Tezos upgrade, Mumbai has been validated and approved by the community through the Tezos blockchain's on-chain governance process.
The activation of Mumbai marks the culmination of a months-long collaboration between developers teams and the broader Tezos community.
Experts from Nomadic Labs, Marigold, TriliTech, Oxhead Alpha, Tarides, DaiLambda, and Functori have contributed to this update, which unveils a new era of scalability and opens the door for exciting new applications to be deployed on Tezos blockchain.
About TEZOS
Tezos is smart money, redefining what it means to hold and exchange value in a digitally connected world. A self-upgradable and energy-efficient Proof of Stake blockchain with a proven track record, Tezos seamlessly adopts tomorrow's innovations without network disruptions today. For more information, please visit www.tezos.com.
About TEZOS FOUNDATION
The Tezos Foundation is a Swiss non-profit foundation that supports the development and long-term success of the Tezos protocol, an energy efficient blockchain with the ability to evolve by upgrading itself. For more information, please visit www.tezos.foundation.
To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.
View source version on businesswire.com: https://www.businesswire.com/news/home/20230329005895/en/
Contact information
Randall Woods
tezos@sbscomms.com
About Business Wire
For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
Zilch to Acquire Fjord Bank to Kickstart European Expansion8.1.2026 02:40:00 EET | Press release
Zilch, the consumer payments platform powering the future of commerce, today announces it has signed an agreement to acquire AB Fjord Bank, a Lithuania-based bank with approx. $120M in total assets that is authorised and regulated by the Bank of Lithuania and the European Central Bank. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260107714872/en/ Zilch to Acquire Fjord Bank to Kickstart European Expansion The acquisition will represent a major strategic milestone for Zilch, providing a European banking licence that will enable the accelerated rollout of its offering across Europe. Zilch will purchase 100% of Fjord Bank and will establish Lithuania as its European headquarters as a consequence of the transaction, using Vilnius as its operational and regulatory platform for expansion across Europe. Launched in 2021, Fjord Bank is a profitable and fully regulated challenger bank, focusing on online consumer lending and saving
Novotech Appoints Anand Tharmaratnam as New CEO8.1.2026 02:01:00 EET | Press release
Novotech, a globally recognized full-service biotech clinical research organization (CRO), is pleased to announce the appointment of Dr. Anand Tharmaratnam as its new Chief Executive Officer. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260107098568/en/ Dr. Anand Tharmaratnam, Novotech CEO and Chairman Dr. Tharmaratnam brings nearly three decades of experience in the global CRO industry and has served as Novotech Chairman since 2021. He commenced as Chairman and CEO on 1 January 2026. Reflecting Novotech’s increasingly international profile, Dr. Tharmaratnam will be based at the company’s new global headquarters in Singapore. The appointment follows a thoughtful and considered process. In early September 2025, Novotech’s former CEO Dr. John Moller informed employees of his intention to step down from the position at the end of last year, after nine years in the CEO role. The decision followed the successful completion of t
Quectel Launches RG660QA and RG660QB 5G Modules With Advanced Performance Features7.1.2026 19:00:00 EET | Press release
Quectel Wireless Solutions, an end-to-end global IoT solutions provider, today announces the launch of the RG600QA and RG660QB 5G module, based on the Qualcomm® X85 and X82 5G Modem-RF Systems. The RG660QA is based on X85 while the RG660QB is based onX82. Engineering samples of two first SKUs in the RG660Qx series have been already made available to customers and pre-production samples will be available to the market in Q2 2026. Designed for versatility, this module series supports a broad array of next generation 5G use cases, from home and business wireless broadband to mobile video, camera applications, and high-performance mobile hotspots. In indoor 5G CPE, it unlocks premium performance by enabling Wi-Fi 7 across the 2.4 GHz, 5 GHz, and 6 GHz bands, with integrated Bluetooth to support a full ecosystem of connected devices. With Ethernet speeds reaching up to 10 Gbps, the RG660Qx delivers the high-capacity backbone needed to power ultra-fast, reliable home and enterprise networks.
Sodali & Co Announces Executive Leadership Appointments7.1.2026 18:00:00 EET | Press release
Sodali & Co (the ‘firm’ or ‘Sodali’), the leading global capital markets-centric stakeholder advisory firm, is pleased to announce four appointments to its Executive Leadership Team (ELT) under Chief Executive Officer Andrew Benett. These newly created senior roles will strengthen Sodali’s ability to respond to clients’ evolving needs with an integrated suite of shareholder, sustainability, and strategic communications advisory services delivered on a global scale. The appointments are as follows: Brett Clegg has been promoted to Chief Commercial Officer. Brett was previously Chairman of Sodali’s APAC region, based in the firm’s Sydney office. He specializes in advising clients on strategic communications, issues management, and capital markets transactions. Prior to Sodali, Brett spent over two decades in senior executive and editorial roles at some of Australia’s leading news brands, including The Australian Financial Review, The Australian, and The Daily Telegraph. Aneliya Crawford
Andersen Global Adds González-Paullada Domínguez in Monterrey, Mexico7.1.2026 16:30:00 EET | Press release
Andersen Global broadens its Latin American platform through a Collaboration Agreement with Monterrey-based law firm González-Paullada Domínguez (GPD), further strengthening the organization’s coverage in Mexico. Founded in 2021, GPD offers comprehensive services across transactional and litigation matters. The firm advises clients across sectors—including manufacturing, real estate, insurance, information technology, mining, and banking—on corporate law, mergers and acquisitions, real estate transactions, foreign investment, commercial contracts, regulatory compliance, and ongoing legal audits. GPD also represents clients in complex civil and commercial litigation, arbitration, and insolvency proceedings. “Monterrey is a major economic hub where local credibility and deep relationships are essential, particularly for foreign investors seeking to enter the market,” said Alfonso González-Paullada Guerrero, founder and managing partner of GPD. “By collaborating with Andersen Global, we s
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom