SealKernel's History

2026, May 13th, that was the time when I created SealKernel, in the name of PadOS. So, why do I create SealKernel? Well, we have to look back way further to Zilr, it is a dummy web operating system, just to simulate how GUI works (i guess). But, it was no fun. It was too simple and also have a lot of files. I once was told that complicating stuff was an idiot's stuff, and simplifying stuff to the bare minimum was better.

Zilr stopped updating on February 20, 2026. My view shifted to low level programming: C, C++ and Assembly (x86_64). After I learned about Red Hat based operating systems like Fedora and CentOS, I was admired how Red Hat Enterprise Linux first test their beta programs on Fedora (upstream) then put Fedora Stable programs (tested and they like it) to CentOS Stream. Note that CentOS was discontinued in 2019 (sadly :( ) and was shifted to the open-source project called CentOS Stream. And finally when CentOS Stream stuff was rock solid (not talking about Debian) then they put it to RHEL. This is why RHEL is more stable then Fedora and a lot of important applications were tested on RHEL.

Around the same month, I learned about TempleOS, a 64 bit operating system with 640x480 resolution ONLY (don't mind TinkerOS) and onyl allows 16 colours. TempleOS was an amazing project, spending 10 years creating an Operating System without any help.

So, on May 13th 2026, I started making PadOS v0.1, and it features simple stuff like change permissions of a file and a directory, create a file, read a file, write a file and soem ASCII arts that are still preserved now (eggs and lemon). Of course, info and about was existed there also.

When PadOS v0.2 was made, I thought PadOS was named because of the naming of CodePad, but why not make it better? Seal was my favourite animal, so you guessed it. SealOS 1.0 was made.

Around SealOS 3.0 or 4.0, I wanted to let users to test the products that I think that is super stable. So SeaLion OS v1.0 was released. Around SealOS 6.0, SeaLion OS released I think v2.0 to v2.6. SeaLionOS 2.6 was the last version SeaLionOS ever released. Then I made BarrierOS so it can act as a middlestream between SealOS and SeaLionOS, and of course it only got 1 release (based on SealOS 8 to 9)

Then both of the "downstreams" stopped supporting and SealOS changed its name to SealKernel on release 10 due to SealOS can be as an AI stuff and SealOS isn't an OS and Kernel is more to I/O stuff and bootloader (I mean SealKernel has I/O stuff)

After that they were just adding features and July 16th 2026 it changed from SealKernel 28 to SealKernel 16.7.2026 and in July 31th 2026 SealKernel changed most of its I/O from stdio.h to zlio.h.

August received the most critical bugs change like changing directory problem and SUDD finally released.