Stellar launches Protocol 26 guide; HederaCon 2026 announced; Chainlink hackathon winners revealed

What shipped

Several important updates and happenings have emerged this week from key blockchain projects like Ripple, Stellar, Hedera, Flare Network, and XDC Network. Notably, Stellar has released a detailed guide for its Protocol 26 upgrade, helping developers and users understand the improvements and changes coming to the network. Hedera has announced the agenda for HederaCon 2026, their upcoming community event, along with a summary of highlights from March 2026 and quarterly event recaps. Meanwhile, the Chainlink community celebrated the winners of the Convergence hackathon, a competition encouraging innovative uses of blockchain data.

These updates come amid a market where most cryptocurrencies, including Bitcoin and Ethereum, experienced modest price declines over the past 24 hours. However, the ongoing work by these projects reflects continued growth and maturation of the blockchain ecosystem.

Why it matters

Upgrades like Stellar’s Protocol 26 are crucial because they enhance the network’s functionality, security, and scalability. This means Stellar can handle more transactions faster and more reliably, which is essential for real-world applications like cross-border payments and decentralized finance (DeFi). Stellar’s focus on improving privacy and institutional adoption, as highlighted in their blog posts, addresses one of the biggest challenges in blockchain today: balancing transparency with user privacy.

Hedera’s events and updates reinforce its role as a leading enterprise-grade public network, providing stable and fast services for businesses and developers. The HederaCon agenda and monthly highlights give the community a chance to engage with new tools, partnerships, and innovations, fostering collaboration and growth.

The Chainlink hackathon winners showcase the creativity and technical skill emerging in the blockchain space. Hackathons encourage developers to build practical solutions that use decentralized oracle networks, which connect blockchains to real-world data, expanding what’s possible on-chain.

Builders’ corner

If you’re new to blockchain development or simply curious about how these projects work, here are some simplified explanations and tips:

• Protocol upgrades: Think of these as software updates for a blockchain. They improve the system by fixing bugs, adding features, or making it faster and more secure. Stellar’s Protocol 26 is one such upgrade.
• Decentralized oracles: These are services like Chainlink that provide blockchains with reliable external data, such as stock prices or weather info. This data is vital for smart contracts that depend on real-world conditions.
• Privacy on blockchains: While blockchains are transparent by design, many projects are working on ways to protect user privacy without sacrificing security. Stellar and Hedera are exploring these solutions to make blockchain more accessible to institutions.
• Community events and hackathons: These gatherings and competitions are fantastic opportunities to learn, network, and contribute to blockchain projects. HederaCon and Chainlink’s Convergence hackathon are recent examples.

For developers interested in getting started, Stellar’s upgrade guide is a great resource, and participating in hackathons can accelerate your understanding and visibility in the community.

Quick prices

As of April 7, 2026, here’s a snapshot of some major cryptocurrencies and their recent price changes:

• Bitcoin (BTC): $68,214 (-1.94% in 24h)
• Ethereum (ETH): $2,083 (-2.26% in 24h)
• Ripple (XRP): $1.30 (-3.31% in 24h)
• Stellar (XLM): $0.15 (-3.35% in 24h)
• Hedera (HBAR): $0.086 (-2.65% in 24h)
• Flare Network (FLR): $0.0073 (-2.67% in 24h)
• XDC Network (XDC): $0.031 (-0.94% in 24h)

While prices have dipped slightly, it’s important to remember that volatility is normal in crypto markets. The ongoing technical developments and ecosystem growth are positive signs for long-term potential.

What to watch

• Stellar’s Protocol 26 upgrade: How the new features and improvements will impact transaction speed, fees, and privacy.
• HederaCon 2026: Insights and announcements from this upcoming event could signal new partnerships or product launches.
• Privacy solutions in blockchain: Follow how projects like Stellar and Hedera tackle the challenge of institutional privacy without compromising transparency.
• Cross-border payments: Ripple and Stellar continue to innovate in this area, which is key for global financial inclusion.
• DeFi market trends: Recent reports show yield drops in DeFi, so watch how protocols adapt to maintain competitiveness.
• Regulatory developments: Keep an eye on policy changes and their effects on crypto adoption and security.

TL;DR: This week, Stellar launched a major protocol upgrade guide while Hedera shared exciting event news. Chainlink celebrated hackathon winners, highlighting developer innovation. Despite slight price dips across top cryptocurrencies, ongoing technical progress and focus on privacy, scalability, and real-world applications signal a promising future for blockchain technology. Newcomers should explore upgrade guides, participate in community events, and stay informed on privacy and regulatory trends to navigate this evolving space confidently.