Our primary development goal is the activation of the “v2” hardfork. “v2” is our codename for a massive overhaul to Sia’s consensus mechanisms. It will modernize Sia’s core consensus code and provide a number of usability, performance, and quality-of-life improvements to the network. We are currently working with partners on the necessary updates and ensuring that their is a smooth transition for the ecosystem.
Shortly after the hardfork, we will be working on reducing onboarding friction for users, developers, and enterprises including:
- Light worker agents to increase horizontal scalability for enterprises, but also enable users to download and upload objects from all of their devices.
- Simple SDKs for developers to interact with the Sia network directly.
- A mobile and web app that lets all users take advantage of the cost savings, privacy, accessibility, and performance advantages of decentralized storage without the hassle of buying crypto or managing storage contracts.
“v2” is an umbrella term that refers to an upcoming radical overhaul of Sia’s consensus code. The primary change is the transition from a large, unwieldy database of UTXOs to a compact cryptographic accumulator, bringing myriad benefits to performance, scalability, and functionality. This is a big deal: it requires changing the block and transaction formats, which have been untouched since Sia’s mainnet launch back in 2014. As such, we are taking this opportunity to clean up a few other warts in Sia’s consensus code, giving the project a solid foundation for many years to come. For a more technical dive on how Utreexo works, check out Luke’s blog post here and MIT Bitcoin talk here.
- UTreexo
- Improved UTXO spend policies
- “Composable” unlock conditions
- HTLC support for atomic swaps
- Storage contract changes
- Early contract termination
- Collateral efficient renewals
- Renter Host Protocol Improvements
- Increased download and upload speeds
- Web browser support
December 2024
- Release v2.0 ready software - Complete
- Announce activation dates - Complete
March 2025
- Upgrade Zen testnet - Complete
June 2025
RHP4, short for renter-host protocol 4, is the next iteration of the protocol hosts and renters use to communicate. Our goal for RHP4 is to increase the parallelism of data uploads, reduce protocol overhead, and improve download performance. A new protocol is required to enable some exciting new features to be available after the Utreexo hardfork, such as early contract termination, capacity reservation, and contract renewal fund rollover. RHP4 will also enable storage consumers to download and upload data directly in the browser without installing additional software.
- Improved upload and download performance
- Concurrent uploads
- Decentralized uploads and downloads in a browser without downloading software
May 2025
- Complete support for web transport - In Progress
- Release Sia SDK beta - In Progress
The new Sia renter, replacing the current siad renter module. Drawing on what we’ve learned from siad, skyd, and us, we designed renterd from the ground up to be modular and horizontally scalable. Although the average user likely won’t notice, a renterd deployment is actually a set of interconnected services. As such, it can distribute workloads in parallel across multiple machines, and can be configured to store its metadata in any SQL backend. This flexibilty makes renterd easier to integrate with other Sia ecosystem software, such as Sia Satellite and S5, and addresses the scalability barriers that have historically hampered enterprise solutions.
January 2025
- Release hardfork ready v2.0.0 - Complete
June 2025
- Browser support for uploads and downloads
- Native file sharing
- Less complicated setup
The new Sia host, replacing the current siad host module. The host module has been chronically neglected for years, and suffers from poor upload performance, data integrity issues, and a general lack of user-friendliness. hostd is our greenfield reimagining of the Sia hosting experience, bringing a sorely-needed refresh to our host community. Aside from addressing performance bottlenecks, hostd also -offers superior metrics and monitoring tools, which will allow users to make informed decisions about storage allocations, contract parameters, pricing, and quality of service.
December 2024
- Release hardfork ready v2.0.0 - Complete
June 2025
- Web browser support - In Progress
The new Sia wallet, replacing the current siad wallet module. walletd aims to be the go-to option for average holders, lite wallet developers, exchanges and miners that need a secure place to store their SC. Accordingly, it supports both hot and cold setups, including multi-sig schemes and hardware wallet integration. Like renterd and hostd, walletd comes packaged with a sleek, yet powerful UI, which can be securely accessed from any device.
Note: you do not need walletd to be a renter or a host; renterd and hostd include their own built-in hot wallets.
December 2024
- Release hardfork ready v2.0.0 - Complete
The new Sia explorer, replacing and going far beyond the current siad explorer capabilities. explored will serve as both a standalone blockchain explorer with a web interface, and as a library providing powerful indexing and searching capabilities to third-party explorers (e.g. SiaStats) and “lite-client” systems like narwal. explored will be developed and launched alongside the Utreexo overhaul, making it one of the world’s first Utreexo-native block explorers.
March 2025
- Release hardfork ready v2.0.0 - In Progress
Document version date: Mar 2, 2025Apr 8, 2025This PR moves the entitylist component and its related subcomponents out of design-system and into explorer. I brought BlockList over as well.
The only snafu is with the PeerList component, so I rewrote this using only the props that it needed. This component is used across our non-explorer apps, so this likely needs a manual QA'ing to make sure things work as expected with it.
Apr 8, 2025Not sure how we missed this for so long
http: panic serving 172.18.0.17:43362: runtime error: slice bounds out of range [450:1]
goroutine 7191094 [running]:
net/http.(*conn).serve.func1()
/usr/local/go/src/net/http/server.go:1947 +0xbe
panic({0xe8b8e0?, 0xc000350198?})
/usr/local/go/src/runtime/panic.go:791 +0x132
go.sia.tech/renterd/v2/alerts.(*Manager).Alerts(0xc0002b0680, {0xc00018a620?, 0xc002180140?}, {0x0?, 0x0?, 0x0?})
/renterd/alerts/alerts.go:242 +0x53e
go.sia.tech/renterd/v2/bus.(*Bus).handleGETAlerts(0xc0001d2c80, {{0x19142d0, 0xc00018a620}, 0xc002180140, {0x0, 0x0, 0x0}})
/renterd/bus/routes.go:1858 +0x24a
Apr 8, 2025Easier use of ephemeral outputs for atomic swaps
Apr 8, 2025Bumps the dependencies group with 3 updates: github.com/mattn/go-sqlite3, golang.org/x/sys and golang.org/x/term.
Updates github.com/mattn/go-sqlite3 from 1.14.24 to 1.14.27
Commits
8d69329 revert #12599794660 docs: clarify GCP sectionb9f4d8c chore: Fix memory leak in callbackRetText function7658c06 Fix sqlite3_opt_unlock_notify with USE_LIBSQLITE3 (#1262)c61eeb5 remove superfluous use of runtime.SetFinalizer on SQLiteRowsab13d63 Remove suggestion that CGO isn't always needed (#1290)348128f Upgrade upload-artifact action82bc911 close statement when missing query arguments- See full diff in compare view
Updates golang.org/x/sys from 0.31.0 to 0.32.0
Commits
01aaa83 all: simplify code by using modern Go constructs1b2bd6b windows: replace all StringToUTF16 calls with UTF16FromString1c3b72f unix: update Linux kernel to 6.14c175b6b windows: add cmsghdr and pktinfo structures3330b5e unix: support Readv, Preadv, Writev and Pwritev for darwin7401cce cpu: replace specific instructions with WORD in the function get_cpucfg on lo...b8f7da6 cpu: add support for detecting cpu features on loong64f2ce62c windows: add constants for PMTUD socket options- See full diff in compare view
Updates golang.org/x/term from 0.30.0 to 0.31.0
Commits
5d2308b go.mod: update golang.org/x dependenciese770ddd x/term: disabling auto-completion around GetPassword()- See full diff in compare view
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Apr 7, 2025Bumps the all-dependencies group with 2 updates: github.com/mattn/go-sqlite3 and golang.org/x/term.
Updates github.com/mattn/go-sqlite3 from 1.14.24 to 1.14.27
Commits
8d69329 revert #12599794660 docs: clarify GCP sectionb9f4d8c chore: Fix memory leak in callbackRetText function7658c06 Fix sqlite3_opt_unlock_notify with USE_LIBSQLITE3 (#1262)c61eeb5 remove superfluous use of runtime.SetFinalizer on SQLiteRowsab13d63 Remove suggestion that CGO isn't always needed (#1290)348128f Upgrade upload-artifact action82bc911 close statement when missing query arguments- See full diff in compare view
Updates golang.org/x/term from 0.30.0 to 0.31.0
Commits
5d2308b go.mod: update golang.org/x dependenciese770ddd x/term: disabling auto-completion around GetPassword()- See full diff in compare view
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Apr 7, 2025Bumps the all-dependencies group with 2 updates: golang.org/x/crypto and golang.org/x/sys.
Updates golang.org/x/crypto from 0.36.0 to 0.37.0
Commits
959f8f3 go.mod: update golang.org/x dependencies769bcd6 ssh: use the configured rand in kex initd0a798f cryptobyte: fix typo 'octects' into 'octets' for asn1.goacbcbef acme: remove unnecessary []byte conversion376eb14 x509roots: support constrained rootsb369b72 crypto/internal/poly1305: implement function update in assembly on loong646b853fb ssh/knownhosts: check more than one key- See full diff in compare view
Updates golang.org/x/sys from 0.31.0 to 0.32.0
Commits
01aaa83 all: simplify code by using modern Go constructs1b2bd6b windows: replace all StringToUTF16 calls with UTF16FromString1c3b72f unix: update Linux kernel to 6.14c175b6b windows: add cmsghdr and pktinfo structures3330b5e unix: support Readv, Preadv, Writev and Pwritev for darwin7401cce cpu: replace specific instructions with WORD in the function get_cpucfg on lo...b8f7da6 cpu: add support for detecting cpu features on loong64f2ce62c windows: add constants for PMTUD socket options- See full diff in compare view
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