On May 24, 2013, at 09:53 , andy pugh wrote:

> On 24 May 2013 16:43, Sebastian Kuzminsky <s...@highlab.com> wrote:
> 
>> 2.5.0 is over a year old now, and we're nowhere near releasing 2.6.  One 
>> thing i'd like to do at the hackfest is talk about what features people want 
>> in 2.6, and come up with some sort of plan for getting those features in and 
>> stabilizing the 2.6 branch.
> 
> I assume that this is in addition to things already present in "master"?

That's what i had assumed, but last time i talked with mah about it he said he 
wanted the new-rtos stuff on top of 2.5.

As you might guess, i don't want to put the new-rtos code into the stable 2.5 
branch.  I talked with Chris about it and he pointed out the possibility of 
branching 2.6 off 2.5 instead of off of master, then putting the new-rtos stuff 
into that 2.6 branch.  We keep 2.5 risk-free (this makes me and the 2.5 RM 
happy), we get a branch that has the proven stability of 2.5 plus the new-rtos 
feature (i think this makes mah happy), and we leave the other master features 
for 2.7, later.

If we *were* to branch 2.6 off master, then yes you're right, all the stuff in 
master would become part of the 2.6 branch.


> I guess it is safe to assume that we will stay with Ubuntu and that
> this release will target the 12.04 release?

I've certainly been assuming that we'll stay with Ubuntu, and that we'll target 
basically what we're currently building on the buildbot:  Hardy sim & rtai, 
Lucid sim & rtai, Precise sim, plus any new rtos options we merge.

I hope we merge the new-rtos branches somehow for 2.6, but i think it's largely 
up to mah and i don't know what his plans/desires are for this.


> I would think that the main candidate New Feature is probably the
> Xenomai / RT_PREEMPT stuff.

I agree.

There are a bunch of minor janitor-level tasks I hope to get into 2.6:

* libmodbus3 (i'm currently working on this)

* automatic asciidoc math  rendering

* add support for the hm2 encoder filters

* probably other stuff i'm not remembering right now


> Is there any scope for finally "main-branching" joints_axes3? It
> appears to offer some really rather useful extra features.

It does seem like a really good branch, and i do want it in mainline at some 
point.  I'm not sure if now's the time to merge it, or after 2.6.  Since it's 
not currently in mainline it doesn't get very widespread testing, and that 
makes me not trust it and makes me want to give it a long time to stabilize (in 
mainline, after merging it) before we release it.

So if we merge ja3 now, i think it will push out 2.6 even further.  


> Distributing configs for RPi and BeagleBone is also an interesting
> option that could be considered. (With the caveat that RPi is unlikely
> ever to be particularly useful)


I agree.  I looked a bit at building the new-rtos branches for Raspian in an 
ARM QEMU instance, and i think that might work well for us.   This is something 
i'd love to talk about after the new-rtos branch is merged.


-- 
Sebastian Kuzminsky


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