What Happened With SASEUL in 2025 and 2026? A Listing, the Big Update (Hard Fork) and an Outage, From Official Notices
SASEUL past news · May 2025 to June 2026
A listing, a big update, an outage. In the order the official notices give
May 2025
BitMart listing
September 2025
Warning on big update rumors
February 2026
First big update file
June 2026
Fault in new record book pages
From May 2025 to June 2026, four big things happened with SASEUL.
- Listing on BitMart, an overseas exchange (a market for buying and selling coins)
- A warning about false rumors around the hard fork (an update that makes big changes to the SASEUL program)
- The hard fork update
- A fault in June 2026 where new record book pages weren't being made properly
All of them are in notices the SASEUL team posted on its official Telegram channel. Telegram is a messaging app used around the world. This isn't every notice, just the ones that matter to miners.
"What was announced" is what the SASEUL team said. "What was checked" is the part checked separately against public sources.
What happened in 2025?
-
BitMart listing notice
What was announcedIt said BitMart would handle SASEUL coin (SL). It pointed to BitMart's notice that it would list on May 9, 2025
What was checkedBitMart stopped all trading on August 26, 2026. Checked in BitMart's official notice on September 24, 2026
-
Fix for node display error on the official record book site
What was announcedIt said it fixed an error where live nodes weren't showing properly on the official block explorer (the site where anyone can view the SASEUL record book). A node is a computer holding the SASEUL record book
What was checkedAt 9:23 a.m. on September 27, 2026, the explorer's statistics screen shows nodes as 46 / 74. The number changes within minutes. The first is places mining, the second is computers with an up-to-date record book
-
Warning about false rumors around the hard fork
What was announcedIt said many people had lost out because of wrong information and pressure around the coming hard fork. It also said some people were using the hard fork as an excuse to push others. It said development was in its final stage, and the update would come out after enough testing on a separate practice network (testnet)
What couldn't be checkedThe notice doesn't say what false rumors were going around
When the hard fork finishes is covered in When does the hard fork end?.
And the first half of 2026?
Unfamiliar words come one after another in the notices below. Here's what they mean first.
| Word in the notices | What it means |
|---|---|
| Hard fork | An update that makes big changes to the SASEUL program. Once it's done, old versions of the program won't fit the new record book |
| 2.2.0.3, 2.2.0.4 | Version numbers of the SASEUL program. The bigger the last number, the newer the version. Same as version numbers on phone apps |
| Main block | One page of the record book where transactions are written, a block. SASEUL uses a separate record book for mining records (resource blocks) and one for transactions (main blocks) |
-
Update date pushed back (January 15 → 19, then delayed again)
What was announcedIt said the date was pushed back to allow time to check stability. On January 19 it announced another delay
-
First hard fork update released
What was announcedIt said the first file of an update more than two years in the making was going up on Docker Hub (where program files are downloaded). It said it would come out in several stages instead of all at once
What couldn't be checkedWhether the second and third updates were completed couldn't be clearly confirmed in later notices
-
Version 2.2.0.3 released
What was announcedIt said it cut down unneeded messages between computers holding the record book. It said it added a search feature and fixed errors (bugs)
-
Fault in making new record book pages (main blocks)
What was announcedIt said that from around 7:32 p.m. on June 14 (Korea time), some computers that mined successfully couldn't make main blocks (the record book pages where transactions are written). The SASEUL team urgently added more mining computers. About six hours later, the next notice (#79) said it had prepared version 2.2.0.4, bringing forward part of the big update (2.3)
What couldn't be checkedThese two notices don't say when the fault was fully fixed
-
Guardee wallet app overhaul
What was announcedIt said the official wallet app (an app to receive and send coins) Guardee had been overhauled (notice #80). A follow-up post at the same time (#81) said support for Bitcoin (BTC) and Ethereum (ETH) had ended. It said old wallet information can be seen in the settings
What was checkedOn September 27, 2026, Guardee's What's New on the App Store (version 3.0.1, June 20) also mentions the end of BTC and ETH support
During the June fault, the SASEUL team added mining nodes (computers holding a copy of the record book) itself to get record book pages made again. The notices don't say how many were added or whether they're still running. How to check for yourself whether blocks have stopped is in How to check if blocks have stalled.
Where can you keep following this news?
- Official SASEUL Telegram notices: posted directly by the SASEUL team
- SASEUL timeline: notices, articles and forum talk, in date order
- Recent news is in SASEUL news, July to September 2026
Sources
- Official SASEUL Telegram notice #65 · BitMart listing · 2025-05-08
- Official SASEUL Telegram notice #66 · explorer node display fix · 2025-05-28
- Official SASEUL Telegram notice #68 · hard fork rumor warning · 2025-09-22
- Official SASEUL Telegram notice #70 · update date pushed back · 2026-01-14
- Official SASEUL Telegram notice #73 · first hard fork update released · 2026-02-13
- Official SASEUL Telegram notice #75 · version 2.2.0.3 released · 2026-02-23
- Official SASEUL Telegram notice #78 · main block creation fault · 2026-06-15 0:50 (Korea time)
- Official SASEUL Telegram notice #79 · version 2.2.0.4 prepared · 2026-06-15 6:52 (Korea time)
- Official SASEUL Telegram notice #80 · Guardee overhaul · 2026-06-19
- Official SASEUL Telegram notice #81 · Guardee overhaul follow-up (end of BTC and ETH support) · 2026-06-19
- App Store · Guardee (What's New, version 3.0.1) · checked 2026-09-27
- Official SASEUL Telegram notice channel · checked 2026-09-24
- BitMart's official notice on ending operations · checked 2026-09-24
- Official SASEUL explorer statistics screen · checked 2026-09-27 09:23
