📢 Reminder: The second ASP brownout takes place Jan 6, 2026, at 10:00 AM CST for 12 hours. Any app using Alpha State Proofs may experience errors or downtime. Prepare now before the full deprecation in February. More details:

7/ Try the Playground and tell us what features you want next: 🔗👉

6/ Your work now sticks around. Code in the editor is preserved on your device while you’re logged in, so you can jump between Builder, Playground, Dashboard, Faucet, or visit a different website, then pick up exactly where you left off.

5/ Terminal management, your way. Keep as many terminals as you need, or clear them all in one move when you’re switching contexts or starting a fresh run.

4/ AI Assistant updates: it can reference official Hedera documentation for grounded answers, and you can add your own OpenAI API key for unlimited queries and model selection. Also new: a notification inbox in the header for announcements and active notices.

3/ Batch Transactions are now in the Playground (HIP-551). Find a quick example under `Quickstart`, or use the `Misc` menu for a template you can adapt to any transaction type.

2/ More test accounts, less friction. You can now create up to 3 additional accounts in the Portal Dashboard (5 total). Use any of your Portal testnet accounts directly in the Playground and Contract Builder for easier testing and more access to testnet HBAR.

1/ The @hedera Developer Playground just shipped a December 2025 upgrade focused on faster iteration and smoother day-to-day testing. First up: a Light/Dark mode switch so you can stay in flow in any setup.

🎁 The December 2025 Hedera Developer Newsletter is live! We’re closing out the year with a curated roundup of the Top 10 developer resources from 2025, plus one bonus pick you don’t want to miss. 👉 Read it here: 🗞️

📢 https://t.co/1WrNQRG2NE has a fresh new look, and so does the Developer Newsletter! All developer newsletter editions are now published on the Hedera blog at https://t.co/Qu0E7lvxfR. 👉 Want to stay up to date with the latest developer news, tutorials, and releases? Subscribe

📢 Lastly, we have moved all Developer Newsletters to the newly updated Hedera blog. Subscribe via our new sign-up form:

🎄Discover all other top 10 resources:

4⃣ Wallet Connectivity on Hedera: When to Use Reown AppKit and Hedera Wallet Connect We've explored how to choose between Reown AppKit and Hedera Wallet Connect for wallet integration. 📰

3⃣ Building AI Agents on Hedera We've released multiple tutorials, blogs, and videos about the Hedera AI Agent Kit. It allows developers to build LLM-powered applications that interact with the Hedera network. https://t.co/JcHxCiZENi

2⃣ Bringing Real-World Data to Hedera with Chainlink Data Feeds @jaycoolh shows us how Chainlink Data Feeds make it easy to bring reliable, real-world data on-chain when building on Hedera. 👉

Here are some of its key highlights: 1⃣ Releasing the Hedera Developer Playground & Hedera Contract Builder The team has worked hard to release two browser-based tools that remove setup friction and help developers move faster on Hedera. Check out our Developer Playground and

The December 2025 developer newsletter is out! 🎄 Just like last year, we are wrapping up with our 10 best dev resources (and a bonus!). 🗞️ https://t.co/VjsBhFbhwW

During Devconnect week in Buenos Aires, the Hedera Hispana Hub hosted a community in person event with ambassadors @0xCastrod, @holaNFT, @martingutter1, @henrytonginfo, @regiweb3, alongside members of the Hedera core team @ejazmerchant, @hbarLATAM, @luismolanovega. Discussions

At Blockchain LATAM Summit (Medellín), Hedera Colombia ambassadors @0xCastrod (Mateo) and @juanmaDLT (Juan Manuel) joined @ed__marquez for a session on tokenization, DLTs, and the future of financial infrastructure. The talk covered why tokenization is becoming core