Steem SSE 3.5.4
-----------------


Steem Engine, by Anthony & Russell Hayward
--------------------------------------------

Steem is a well known Atari ST emulator. It used to be the best ST emulator.
Its development was stopped in 2004, at v3.2. The Steem authors probably got
sick of all the lamers.
Since then, it has remained the best ST emulator with respects to "gameplay",
but other ST emulators like Hatari and SainT are trying to usurp Steem´s
throne.
In 2011 the Steem authors (Hayward bros) released the source code for further
development.


SSE
-----

Steem SSE is a new version of Steem based on this release. It incorporates
new features and emulation improvements, some of them based on the Hatari
emulator, some on various internet discussions and documentation.

Steem SSE aims to become the #1 STF/STE emulator. There´s no limitation in
the original Steem structure that would make that goal unreachable.

´SSE´ stands for ´Steven Seagal Edition´. Steven Seagal is a well known
Aikido grandmaster, action movie star, musician and playboy.
This is also my silly handle at http://www.atari-forum.com (AF).


Available builds
------------------

Both the regular ("user") and the Boiler ("debug") builds are available.
The main build is ´Steem SSE 3.5.2´.
A Linux build (XSteem) is available too. It contains fewer features, and may
lag behind the main version.
All basic emulation improvements (CPU, FDC, etc.) work as well in Linux,
however.


Steem SSE Features
--------------------

- F12 starts/stop emulation, like in most other emulators (in general, not just
ST). The odd Steem key combination was confusing, and dangerous!
Imagine your boss barging in and you don´t know how to stop your virtual ST!
Your own F12 shortcut (for previous versions of Steem) will not operate.
This is not optional, I want nobody fired because of Steem.
The old combination still works too.

- Reset button inverted: left click for reset, right click for switch off

- Drive led: green for reading, red for writing, yellow for hard disk.

- Steem won´t run at once anymore when going fullscreen, it will wait for your
orders. (v3.4)
It´s because it would always stutter anyway, at least on all computers I´ve
tried. Way to lose a life.

- Record to AVI (v3.5)
To use this feature, you need to assign a shortcut key combination (eg right
control + V), then use this shortcut to start & stop recording (toggle).
The video will be saved in Steem´s directory as ´SteemVideo.avi´, erasing the
previous file if necessary.
If the MPG4 codec is in your system, it will be used, if not the MSVC codec
will be used.
Neither video nor sound, nor sync are great. Sound isn´t compressed.
Apparently some computers record the full screen! No idea why.
Certainly there´s room for improvement. We don´t use DirectShow yet.
Windows-only.

- RAR archive support (v3.5)
Using the free Unrar.dll plugin by RAR labs. You need to have this DLL in
Steem folder or in any system path, just like unzipd32.dll.
Windows-only.

- Save screenshot as NEO (v3.5)
Hopefully with the correct palette. Some programs change it all the time, so
it´s better to take the screenshots while the emulation is running, or you
could a black screenshot. Even so, the risk exists.
I made this for the demo included with Steem SSE 3.5.
Note that Steem can also use ´FreeImage´ library for various formats
(PNG etc). Not my doing, was in v3.2.

- Indicate Pasti is in charge on disk manager (v3.5)

- Nuked WinSTon import, it´s outdated (v3.5)
This saves 16KB on the executable.

- Nuked update process (v3.5)

- Match TOS with ST type: refresh in TOS list (only TOS1.02 and 1.06)

- Infobox will display SSE readme and FAQ; new font and size (3.5.2)

- More screenshots (100,000 instead of 1,000) (3.5.2)

- File associations: should work without running as administrator. Can also
remove associations. (v3.5.3)


New options
-------------

Some new options are available, most of them regrouped in a new ´SSE´ tab
(I hope everybody will recognise the icon, I made it myself!).

- Option ´Status bar´
v3.5.4
This toggles visibility of an information line ("STF T102 " etc.) in the
tool bar, so that you don´t need to check in the option page.
# is the symbol I chose for ´Hacks´
ADAT means Accurate Disk Access Times

- Option ´Disk name´
v3.5.4
This displays the name of the current disk in the tool bar. When both this
option and OSD option "Disk image names" are checked, the OSD option is
suppressed.

- Option ´Hacks´
This option covers two kinds of things:
- Convenience hacks, like for TOS1.06 medium resolution fix, or fitting the
window size in Best Part of the Creation
- Emulation hacks, when emulation of some feature isn´t perfect yet we want
the programs to run. Since we don´t understand everything in the feature,
those hacks could break something, hence the option.
In the current version (3.5.2), it covers some "shifts" when the program
writes in the video counter registers (STE mode), some MFP improvements
implemented in a dubious way, and some other various hacks (FDC, IKBD...)
It is recommended to disable ´Hacks´ only if you meet problems (please
report).

- Option ´Emu detect´
v3.4
When you disable this option, Steem won´t cooperate with programs trying
to assert if they run on an emulator. It may be useful if there are still
incurable hardware fanboys around producing worthwhile code that refuses
to run in emulators (I know of no case though), or if some hacker fixed
the program to adapt it to an emulation issue that has since been improved
(eg Sentinel by Klapauzius).
Note that emu detect was in original Steem, only the option to switch it off
has been added in the SSE version.


- Option ´Display Size´

The option is only useful if you show the borders. Quite a few
programs used tricks to display pixels in the borders. The option doesn´t
make sense while emulating high resolution (monochrome).

Why various sizes? There are many reasons.
- The option was built as a hack on the original size. It started a bit
buggy, so it´s best to keep the original size available.
- There´s a performance hit for larger displays.
- 400 x 278 is more useful in full screen mode, 413 x 280 and 416 x 286
in windowed mode.
- Some programs look better with larger displays, other worse!
Because not every monitor showed the full borders, programmers could leave
some "trash" in the borders.
On the other hand, some texts are readable only with larger borders.

- Option ´Interpolated scanlines´ (v3.5.1)
Mixing ´stretch´ mode with ´scanline´.
That way the picture resembles more the display of a not so sharp colour
monitor on a real ST (Goldstar: interpolated vs JVC: scanlines).
The option is available in both low and medium resolutions (not high).
It works (or should) for both windowed and full screen modes.
Like some other SSE features, it´s more a hack than anything.
Windows-only.

- Option ´ST Model´
This is the long awaited STF/STE switch in Steem.
This switch is a departure from the original STEem, which endeavoured to
emulate only the STE.
The STE was the better computer but most programs were coded with the older
STF in mind.
Emulating the differences between STF and STE is not so hard and makes a lot
more programs, some I find important, run in Steem.
You can change this option during emulation but at your risk.
Even if some STE programs may work in TOS 1.02, it´s better to use TOS 1.06
or 1.62.
The emulator won´t compel you, but will try to match a default compatible TOS
when you change the option.
It only looks for 1.02-STF, 1.06-STE, because they seem to be the most
compatible TOS.
The STF won´t boot with TOS 1.06, 1.02 or 1.04 is recommended, though 1.00
may be necessary for older programs.
The Mega STF option gives you the blitter and 4MB, that´s all it does, it´s
for fun (and we do this for fun, right?)

- Option ´Wake-up state´ (v3.5)

This is a very technical point, related to latency between some chips.
It is determined somewhat randomly (depending on temperature for example!)
at power-on on a true ST. See below, improvements.

- Option ´6301 true emu´
Using code by Arne Riiber and doc by Stephane Catala - Belzebub / ST
Connexion), Steem features CPU-level emulation of the "intelligent keyboard"
(IKBD) chip since v3.4.
The main goal was to be able to run some demos reprogramming that chip
without copying Hatari code, but it does more than that, being better than
fake emu in some cases, worse in others. When you change this option, you
normally should reset the ST, but Steem won´t force you.
For this option to work, copy the (supplied) IKBD rom ´HD6301V1ST.img´ into
your Steem folder.
To reduce code footprint, removed hack that has demos Dragonnels,
Froggies, Transbeauce 2 running without ´true 6301 emu mode´. (v3.5.1)

- Option ´Keyboard click´
This option reflects the state of bit 1 of address $484 in the ST, that
is checked by the OS to know if it must produce that annoying click or not
when you press a key. It´s like on the GEM Control Panel, but always
available. It was often requested and is at last available in this Steem
build. It would be most useful for playing the Pasti version of The Pawn,
for example.
Use this switch only when you want to get rid of clicks. Many programs
overwrite this memory zone, and changing some byte could crash the ST.

- Option ´Capture mouse´
Steem takes control of the mouse when running. You may use a keyboard
shortcut to release the mouse. Key ´pause´ is the default.
In the SSE version, this option may change the behaviour. When unchecked,
Steem will take the mouse only when you click in the window or you use
the shortcut.

- Option ´PSG Filter´
Disable to get the original Steem 3.2 filter of the YM2149 soundchip,
enable for another filter, more open (and in fact simpler). This is very
subjective, I prefer PSG sound like this, including samples, but the sound
of samples could be worse, depends.

- Option ´STE Microwire´
STEem being an STE emulator, it was about time to add support for this
rarely used feature of the STE, the ultra-cheap Microwire tone controller.
We use simple 3rd party DSP code by Maverick (Fabio Bizzetti) to add
control over volume, balance, bass & treble in those rare cases.
I´m sure it doesn´t exactly sound like on an STE, but I doubt they sounded
that great anyway.

- Option ´Slow disk´.
It duplicates the same option in the disk manager because
I noticed that even old-time users often forget about this option.
(v3.5.3)

- Option ´Track drive info´.
Floppy drive: new option to display current drive, side, track and sector.
Yes kid, admit it, it was your fantasy, now it´s true! (v3.5.1)
No sector when fast mode (v3.5.2).

- Option ´Pasti only for STX´
(v3.5.1)
This makes Pasti handle only STX images, Steem being in charge of the rest.
Interesting possibilities: you may try and copy STX images on a ST disk
image. No guarantee!
Windows-only.

Emulation features
--------------------

- Some CPU exception fixes (Beyond, Phaleon, Transbeauce 2...) which have
brought Steem on the same level as Hatari for protected demos.
In v3.5.1, value of PC (program counter) in some provoked crashes now
based on Motorola microcode analysis!
No more vulgar opcode-based hacks in Steem baby (Blood Money, European Demos,
Phaleon, Transbeauce 2, War Heli...)
- CPU prefetch. It was good enough but while trying to fix some problems, I
remade it all, enforcing ijor´s rules; now it´s there in any case. I think
Steem has the best prefetch of all ST emulators.
- CPU prefetch timing: removed the shifter counter hack made necessary by
premature cycle counting. You won´t notice any difference but it´s a huge
internal change, and for this too Steem leads the way.
- CPU DIV timings from ijor (Dragonnels, Pandemonium, proving they´re correct!)
- CPU fetching in IO zone

- More shifter tricks handled: 0-byte line, STE +20 line, 4bit hardscroll...
(v3.3)
Much taken from Hatari, also from AF discussions, doc by demo makers,
etc.
- STE hardscroll in medium (v3.4) and high (v3.5.3) resolution.

- Synchronization of video rendering with changes in video RAM (3615 GEN4)

- Disk drive slow mode: bug fixes and improvements (Disk manager option
"Accurate Disk Access Times", snails appear on disk icons), mainly inspired
by Hatari, Kryoflux, technical documentation about controller and disk
format (gaps).
Steem is now closer to the hardware (Blood, European Demos, MPS GOlf,
Overdrive, Sentinel, ST-NICC2 ...)

- Pasti: toggling Pasti on/off in the disk manager will not force a reset
anymore.
Smarter disk manager, setting pasti on/off as needed, displaying all
images.

- IPF support (disk format of images saved by Kryoflux hardware) (v3.5)
You need CAPSimg.dll in Steem´s directory. It´s available here:
http://www.softpres.org/download
To use this feature, just run an IPF disk. There´s no option like for
Pasti because CAPS only does IPF.
We use the low-level WD1772 included in the DLL, so it´s a matter of
integrating emulations, a bit like for the HD6301 emulation.
The real work was done by István Fábián and The Software Preservation
Society.
IPF support is as good as that emulation. Some features are not implemented
(write commands).
Windows-only.

- ACIA emulation making a more explicit use of the chip´s registers, with
some improvements (MIDI: Notator) (v3.5.1)

- TOS106 medium resolution bug hack (desktop.inf will work!)

- TOS STE faster boot (from hatari) (option ´Hacks´)

- STE auto set RAM to 2MB, STF to 1MB, for better compatibility. Of course
you can still change it at your convenience. (v3.5.1)

- Various other fixes: Blitter, MFP, MMU, ...


Improvements of v3.5.4
------------------------

- Bugfix crash in very large display size on some systems.

- Bugfix option ´Pasti only for STX´ could make Steem treat pasti images as
native on loading a snapshot.

- Bugfix drive internal variable "motor on" (European Demos OVR V).

- Bugfix (useless) feature STE HIRES HSCROLL wasn´t available (oops).

- Bugfix VBL jitter (Japtro).

- ´Cold reset & run´: reset IKBD buffer (Transbeauce 2).

- Bugfix drive complete command on empty drive (European Demos "insert B").

- Bugfix ACIA timing when not using true 6301 emu (Sapiens).

- Bugfix display 400x278 interpolated scanlines shift.

- Safer behaviour for some options (6301, VSync...)

- New status info in the tool bar, giving:
ST model, TOS version, available memory, plus whether 6301 and pasti
or Caps, or accurate drive emulation (ADAT).
Also option for the name of current disk.

- New option "VSync".
This gives you the best display provided your monitor has the correct
refresh rate (50hz/100hz for most programs).
Combined with ´Interpolated Scanlines´ this should give you the best
experience of the great game Goldrunner in window mode on LCD screen.
This should work in window mode as well as in fullscreen mode.
This consumes some CPU power (but not as much as Triple Buffering).

This could interfere with "Compositing" (Desktop Window Manager) in Windows
Vista and 7 in window mode. In Windows 8 you can´t disable Compositing!

- New option "Triple Buffering".
This may be useful to eliminate "tearing" or "ghosting", at the price
of high CPU use.
This should work in window mode as well as in fullscreen mode (stretch
mode only).

"Compositing" (Desktop Window Manager) in Windows Vista and above makes
this option useful only in fullscreen mode, in window mode there´s already
no tearing.
This illustrates that those display problems may also be handled at driver
or OS level.

- New display size options.
384 x 270 normal
400 x 278 max in fullscreen 800x600 mode
413 x 280 max overscan
416 x 286 max plasma
Depending on the program, one or the other size will be better.
Generally the smallest is sufficient.
The sizes count only for border effects in colour mode.
Steem displays what´s inside the video RAM even at the extremities of the
borders, regardless of blanking or plane shifs introduced by shifter tricks
on a true ST. That´s why 413 x 280 may be actually more faithful than the
max size. If option ´Hacks´ is checked, the image will show 52 left
border pixels in 413 x 280 and 416 x 286 modes. If not, only 48.
I believe 52 is the right number, but am not sure. In order to avoid
rewriting the rendering system we also use tricks to obtain those 4 more
pixels. It may break in some yet unknown cases.
Note that internally 400 x 278 is emulated as 416 x 286, and a trick is used
to change resolution at rendering time (blit).
This trick will work in fullscreen mode with option ´straight blit´.
´Screen flip´ will only work with 384 x 270.
This may cause the display to go black or be shifted or another kind of
bizarre when the emulator isn´t running.
400 x 278 allows one to read the full text of Best Part of The Creation.
416 x 286 has recently been modified, so this mode and derived modes
400 x 278 and 413 x 280 could still be a bit buggy!
In short, all bigger than normal (384 x 270) display sizes use various
tricks, and may be trouble in fullscreen mode.

- Wake-up state:
Normally you´ll use this option only if the display of some demo isn´t
correct without. You don´t need to understand all technical aspects
to use the option, of course.

The option has become much more complicated, with 4 states instead of 2.
It is that complicated on the ST.

+------------------------------------------------------------+
| Steem option | Wake-up concepts |
| variable | |
+------------------+---------------+------------+------------+
| WAKE_UP_STATE | DL Latency | WU | WS |
| | (Dio) | (ijor) | (LJBK) |
+------------------+---------------+------------+------------+
| 0 (ignore) | - | - | - |
| 1 | 3 | 2 (warm) | 2 |
| 2 | 4 | 2 (warm) | 4 |
| 3 | 5 | 1 (cold) | 3 |
| 4 | 6 | 1 (cold) | 1 |
+------------------+---------------+------------+------------+

WAKE_UP_STATE is just the Steem option.
DL is a latency electronically measured by Dio (atari-forum) between two
signals, ´DE´ and ´LOAD´, in cycles.
WU are the two wake-up states first found by ijor.
WS are the more detailed "wake states" found by LJBK.
They´re in a strange order for "historical" reasons.

The "Bee" demos by LJBK will recognise WS1-4, and the demos will behave as
expected in all WS.

The option may help for some flickering screens.

Emulation of those states is still not complete.

Needless to say, Steem is leading the way for this issue.

- Save WU state with snapshot; reset on switch STE/STF.

- Line +2 in STE mode: yet a new way.

- ´Shifter panic´: swap good/bad bands to be more like screenshot of
Omega Full Overscan.
Shifter panic is only WU2, by choice, to limit options.
Omega works in WS2, Death of the Left Border in WU1 (at least, in
Steem).

- Rearrange some options, "drive track info" in SSE page, when it´s
checked the drive led of ´OSD´ page is suppressed.

- Disk manager: right click on name to read full name, useful for very
long names.

- MegaST4 option: preselect monochrome.

- Internal:
Reordering of shifter tricks analysis, refactoring.
Some tests for shifter tricks now handled in a state machine-like
manner, not looking for specific switches anymore => better emulation,
more performing tests.
Debugging and removing some hacks related to "wake-up" and "wake-state".



Programs working better in Steem
----------------------------------

If you don´t get it working read hints here below. Maybe you should (un)check
option ´Hacks´ or select anohter ST type or TOS, slow drive, etc.
The number between parentheses is the version of Steem when the program
started to work, but there may have been regressions or improvments.

Games
--------

- Blood Money STX+IPF (CPU) (3.5.1)
- Enchanted Land (shifter counter) (STF/STE) (3.3)
- The Final Conflict (3.3)
- Hyper Force (STF) (3.3)
- International 3D Tennis (STF) (3.3)
- Jumping Jackson (Auto): no menu; useless as I know of no good disk image (3.4)
- Leavin´ Terramis (60hz overscan) (3.4)
- Live & Let Die (STF) (3.3)
- Manchester United: mouse control (3.4)
- Microprose Golf: drive (slow) (thx Petari) (3.5.1)
- Mortville Manor (hiss, probably was already in released code) (3.2+)
- Nightdawn (STF) (3.3)
- No Buddies Land (smooth vertical scrolling) (3.3)
- Rainbow Island (auto 231) (STF) (3.3)
- The Sentinel (mouse, 3.4) (Auto001, 3.5.1 slow disk)
- Seven Gates Of Jambala (Timer B - from Hatari) (3.3)
- Trex Warriors (Timer B - from Hatari) (3.4)
- Titan STE mode (CPU exception) (3.3)
- Titan STF mode (thx Petari) (3.5)
- Ultimate Arena STF (thx Petari)(it quits instead of crashing, yeaaaah)(3.5)
- Warp STX (CPU) (3.5.1) - use correct image on SSE site or Petari´s (2D)
- X-Out (mouse, HD6301) (3.4) + HD version (3.5.1)

- Demos
---------

We fix more demos than games just because demo programming was edgier.
Note that STE demos are tested with TOS106.

- 36.15 Gen4 by Cakeman (STF) - overscan (3.3)
- 36.15 Gen4 by ULM: timings - torn scroller (3.4) (3.5.3: 100%)
- 4pixel Rasters: prefetch - raster size (3.3)
- Audio Artistic Demo: MFP (hack; from Hatari) (3.5.2)
- Beat Demo (STE): sound controls (Microwire) (3.4)
- Beeshift, Beescroll: shifter (3.5.3)
- Beyond: Loader (CPU); Pax Plax Parallax STF (from Hatari) (3.4)
- Big Wobble (STE): shifted pic (´Hacks´) (3.4)
- Bits055 STF mode: refuses to run (yeah!) (3.5.1)
- Blood by Holocaust: disk (3.5)
- Cernit Trandafir (STE, 4MB): CPU timings, 2nd screen (3.5)
- Cool STE: terrible flicker, unreadable & jerky scrollers (3.4)
- Corporation Megademo (STE): keyboard (´Hacks´) (3.4)
- Dangerous Fantaisy: credits (STE): flicker (´Hacks´) (3.4)
- Death of the Left Border (STF2) (3.3)
- Delirious 4 (STE): Loader (FDC), NGC, Nightmare, Tekila (´Hacks´) (3.3,
3.4)
- Dragonnels: Loader (CPU), Menu (IKBD), Rainbow Wall (Borders),
Unlimited Bobs (IKBD) (3.3)
- E605: planet (STE)(option Hacks) (3.4)
- European Demos: Loader (3.3), Disk B (´Hacks´) (3.5.2)
- Extreme Rage (STE): guest screen overscan (3.4)
- Forest aka shforstv.exe in STF1 (3.4), STF2 (3.3), STE (3.4) modes!
- Froggies Over The Fence: Menu (3.3)
- Golden Soundtracker (STE): wrong background colour (3.4)
- Imagination/Roller Coaster (STF) (3.3)
- Japtro STF (3.3); STE (3.5.1)
- The LoSTE screens by Sync (3.5.3)
- More or less Zero (STE, 2MB) (3.3)
- The Musical Wonder 90: big display (3.5.3)
- The Musical Wonder 91 (STF) (3.4)
- No Cooper: Greetings (3.3)
- Nostalgia: Lemmings (STF, STE) (3.3)
- Omega Full Overscan Screen (STF2) (3.3)
- Overdrive: Loader (3.5), Dragon by Ghost (STF2) (3.4)
- Pacemaker credits (STE) (´Hacks´) (3.4)
- Pandemonium Demos: Loader (CPU) (3.3)
- Phaleon: Loader (CPU) (3.3)
- PYM: Best Part of the Creation, ST-CNX (STF) (3.3)
- Revolution (larger display) (3.3)
- RGBeast by Aggression (STE): mush, overscan (3.4)
- Riverside by DHS (STE) (3.5.2)
- SoWatt: Menu, Sync (STF) (3.3)
- Sphere by Sunny (STE): jerky scroller (3.4)
- ST-NICCC 2000 Final by Oxygene (STF+STE version): drive speed (3.5.1)
- Summer Delights (STE) #1, #11, #14 (3.3), #5, #7 (3.5)
- Super Neo Demo Show (all RAM configs) (3.3)
- Swedish New Year Demo/TCB (STF, hacks) (3.3)
- SNYD2/Sync fullscreen (F5) (STF) (3.4)
- Transbeauce 2: Loader (CPU exceptions), Menu (IKBD) (3.3)
- Ultimate GFA Demo boot screen (STF) (3.4)
- Union Demo: Menu, Fullscreen (STF) (3.3)
- V8 Music System: keyboard (3.3)

- Menu intros
---------------

- Automation 168 (STF) (3.3)
- BBC 52 (overscan) (3.3)
- Lemmings 40 (STF) (3.3)
Many intros also benefit from larger display.

- Applications
----------------

- Aladin: (crash on load) (3.5.0; broken 3.5.1, fixed 3.5.2)
- Atari Diagnostic Cartridge (3.5.2)
- NEOchrome: mouse speed? (HD6301 emu) (3.4)
- Notator: tempo, stalling (3.5.1)
- Panzer: drive rotation time (3.5.3)
- ProCopy: Analyze (3.5.1) - What da ya say, useless?
- Spectrum 512 painting program: jitter (ACIA) (3.4)


And countless other programs!


Patches
---------

There are also new patches included with the archive.
Some are useful only with older versions of Steem.


Bugs
------

Please report bugs, especially broken programs, here:
http://www.atari-forum.com/viewtopic.php?f=94&t=25093
(Steem SSE 3.5 post-mortem thread)

No more email/PM please, the more activity on the Atari forum the better.

Please read this file and the SSE FAQ, the answer to some questions is already
in there.

Please try different settings before reporting, not all programs are supposed
to work with all versions of TOS, or on a STF, STE, etc.
Also try with slow (accurate) disk drive mode.



Steem SSE Web sites
---------------------

https://sourceforge.net/projects/steemsse/

http://ataristeven.t15.org/Steem.htm (all builds, ST programs, pics, doc)

http://code.google.com/p/steem-engine/ (source v3.3, Subversion)

https://steemsse.svn.sourceforge.net/svnroot/steemsse (source v3.4 & up,
Subversion, you can download a snapshot of the source)


Release history
-----------------

Steem SSE V.3.3.0, 28/02/2012
Steem SSE V.3.4.0, 22/09/2012
XSteem SSE V.3.4.0, 06/10/2012
Steem SSE V.3.4.1, 14/11/2012
Steem SSE V.3.5.0, 27/02/2013
XSteem SSE V.3.5.0, 02/03/2013
Steem SSE V.3.5.1, 11/06/2013
XSteem SSE V.3.5.1, 13/06/2013
Steem SSE V.3.5.1 OPT, 15/06/2013
Steem SSE V.3.5.2, 04/08/2013
XSteem SSE V.3.5.2, 04/08/2013
Steem v3.2+, 27/08/2013
Steem SSE v.3.5.3, 13/10/2013
XSteem SSE v.3.5.3, 20/10/2013
Steem SSE v.3.5.4, 17/11/2013