DOT Price and Devnet Roundup for September 2026 This Polkadot News report covers two separate developments from September 8 and 9, 2026. DOT price fell sharply today, and a major technical re
DOT Price and Devnet Roundup for September 2026
This Polkadot News report covers two separate developments from September 8 and 9, 2026. DOT price fell sharply today, and a major technical release rolled out to the Polkadot Products Devnet, changing how testers and developers use the platform.
DOT Price Falls 8.4 Percent Today
DOT trades near $1.10, down 8.4 percent over the past 24 hours, according to CoinMarketCap data from September 10, 2026. Market cap dropped to $1.88 billion, and daily trading volume reached $223.08 million, falling nearly 49 percent from the prior period.
Metric
Value
Price
$1.10
24h Change
-8.4%
Market Cap
$1.88B
Unlocked Market Cap
$1.93B
24h Volume
$223.08M
Volume/Market Cap
11.92%
FDV
$2.32B
Total Supply
1.7B
Max Supply
2.1B
Circulating Supply
1.7B

Note:All supply figures above are in DOT. Prices can change quickly, so figures may not reflect the latest value. Readers should check a live price tracker for current data.
Source:CoinMarketCap Chart
Major Devnet Update Rolls Out With New Apps
An official announcement published on September 8, 2026, confirmed a major release for the Products Devnet, along with new versions of its mobile and desktop apps. This Polkadot News piece explains what changed and why every user needs to act before installing the new build.
Chat encryption moves from P-256 to X25519, a modern method built for faster key exchange. Old keys cannot convert to the new format, which is why usernames, contacts, and chat history all start fresh once the new build installs.
Steps Required Before Installing the New Build
The release lists a strict order of steps for anyone using the mobile app. This Polkadot News summary lists them below, since skipping a step can permanently affect access to any registered domain name.
Write down the recovery phrase under Settings, Security and Privacy, Backup
Delete the existing cloud backup through the phone debug menu
Uninstall the current app
Reinstall the new-version from the official release links
The guidance warns that clearing the backup before saving the recovery phrase permanently loses the old account, along with any domain names tied to it.

Source:Official X Post
For developers, this Polkadot News summary points to three tooling changes worth noting.
A fixed contract registry, redeployed at a new-address to resolve a publishing failure
A new domain name system deployment, with existing registered names carried over automatically
A requirement to regenerate and re-pin chain descriptors for Bulletin, Asset Hub, and People after one authorization field is moved into a nested structure
The announcement notes that old registry addresses stay technically readable after the switch, so outdated tools keep working without an error, even though nothing changes for other users.
Anything registered after the migration snapshot on the old system will not appear on the new one, so developers should republish through the current tooling.
Expert Take
Today's Polkadot News combines a sharp price drop with a large technical migration, two developments that do not appear directly connected. The price move lines up with a broader decline in trading volume, while the Devnet release reflects planned platform maintenance rather than a market-driven event.
Developers acting on this release should treat it as a fresh testing environment, since accounts, chat history, and any unmigrated contract names do not carry over automatically.
Conclusion
This Polkadot News piece covers a notable price drop for DOT alongside a major Devnet migration affecting mobile apps, desktop apps, and developer tooling.
Price and market data can shift quickly, so readers should check a live tracker for current figures. Developers should follow the official migration guide closely, since missing a step can affect access to existing domain names.
YMYL Disclaimer:This article is for informational purposes only and does not constitute financial advice. Cryptocurrency prices are volatile, and past performance does not guarantee future results. Readers should conduct their own research before making any investment decisions.