Stellar Soroban SDK v28 Upgrade Supports Protocol 28
Stellar (XLM)
Editor:
Eugene Serbin
u.today reports that the Soroban SDK has received a new upgrade with the release of version 28. This release supports Protocol 28, which launched on the Stellar mainnet on September 16. The Soroban SDK is a Rust-based software development kit used to write smart contracts for Stellar's platform.
The upgrade introduces features such as Spec Shaking v2, contract data migration, and sparsely published events. A key change allows stored contract data to no longer be locked into the shape originally written. This update brings faster consensus and a safer way to migrate contract data for fleets of contracts.
Stellar is currently celebrating its 11th anniversary, having launched on September 30, 2015. The network has recently passed 22,000 RWA holders. Tomer Weller, head of product at the Stellar Foundation, noted that this date marks the anniversary of the new network. He clarified that the old network launched a year earlier in 2014 with the currency Stellars and ticker STR.
How the market reacted
Whalio's own Binance spot order flow for XLM, measured when this story was written up on 30 September 2026. Not the outlet's figures.
XLM is trading at $0.2223 with a 24-hour spot volume of $43,584,007. The 1-hour buy ratio stands at 40.9%, indicating immediate selling pressure, while the 4-hour ratio is 50.8%. Over the last 24 hours, the buy ratio is 50.2%, suggesting a balanced market over a longer timeframe. The 1-hour volume delta is negative at -$534,585, showing net outflows in the short term. In contrast, the 4-hour and 24-hour volume deltas are positive at $100,660 and $204,205 respectively. This indicates that while recent trades show sellers dominating, the broader daily flow has seen net buying.
The latest daily buy ratio of 49.1% sits at the 31st percentile of the last 323 days, against a median of 50.7% - ordinary for this coin.
Was that an ordinary day?
The same Binance spot measurements for XLM, averaged over the days leading up to the story.
Over the preceding week, the average buy ratio was 50.4%, with the latest day showing a negligible difference of -0.1 points. Weekly volume was 1.21 times the average, indicating higher than usual activity. The price increased by 2.8% over eight days, with a total volume delta of +$4,099,761. Net buying occurred on 4 of the 7 days in the period. This suggests that today's 1-hour selling pressure is a short-term deviation from the week's generally balanced to positive flow.