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artiq/RELEASE_NOTES.rst

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.. Add new releases at the top to keep important stuff directly visible.
Release notes
=============
3.0 (unreleased)
----------------
* The --embed option of applets is replaced with the environment variable
ARTIQ_APPLET_EMBED. The GUI sets this enviroment variable itself and the
user simply needs to remove the --embed argument.
* EnvExperiment's prepare calls prepare for all its children.
* Dynamic __getattr__'s returning RPC target methods are not supported anymore.
Controller driver classes must define all their methods intended for RPC as
members.
* Datasets requested by experiments are by default archived into their HDF5
output. If this behavior is undesirable, turn it off by passing
``archive=False`` to ``get_dataset``.
2.0
---
No further notes.
2.0rc2
------
No further notes.
2.0rc1
------
* The format of the influxdb pattern file is simplified. The procedure to
edit patterns is also changed to modifying the pattern file and calling:
``artiq_rpctool.py ::1 3248 call scan_patterns`` (or restarting the bridge)
The patterns can be converted to the new format using this code snippet::
from artiq.protocols import pyon
patterns = pyon.load_file("influxdb_patterns.pyon")
for p in patterns:
print(p)
* The "GUI" has been renamed the "dashboard".
* When flashing NIST boards, use "-m nist_qcX" or "-m nist_clock" instead of
just "-m qcX" or "-m clock" (#290).
* Applet command lines now use templates (e.g. $python) instead of formats
(e.g. {python}).
* On Windows, GUI applications no longer open a console. For debugging
purposes, the console messages can still be displayed by running the GUI
applications this way::
python3.5 -m artiq.frontend.artiq_browser
python3.5 -m artiq.frontend.artiq_dashboard
(you may need to replace python3.5 with python)
Please always include the console output when reporting a GUI crash.
* The result folders are formatted "%Y-%m-%d/%H instead of "%Y-%m-%d/%H-%M".
(i.e. grouping by day and then by hour, instead of by day and then by minute)
* The ``parent`` keyword argument of ``HasEnvironment`` (and ``EnvExperiment``)
has been replaced. Pass the parent as first argument instead.
* During experiment examination (and a fortiori repository scan), the values of
all arguments are set to ``None`` regardless of any default values supplied.
* In the dashboard's experiment windows, partial or full argument recomputation
takes into account the repository revision field.
* By default, ``NumberValue`` and ``Scannable`` infer the scale from the unit
for common units.
* By default, artiq_client keeps the current persist flag on the master.
* GUI state files for the browser and the dashboard are stores in "standard"
locations for each operating system. Those are
``~/.config/artiq/2/artiq_*.pyon`` on Linux and
``C:\Users\<username>\AppData\Local\m-labs\artiq\2\artiq_*.pyon`` on
Windows 7.
* The position of the time cursor is kept across experiments and RTIO resets
are manual and explicit (inter-experiment seamless handover).
* All integers manipulated by kernels are numpy integers (numpy.int32,
numpy.int64). If you pass an integer as a RPC argument, the target function
receives a numpy type.
1.3
---
No further notes.
1.2
---
No further notes.
1.1
---
* TCA6424A.set converts the "outputs" value to little-endian before programming
it into the registers.
1.0
---
No further notes.
1.0rc4
------
* setattr_argument and setattr_device add their key to kernel_invariants.
1.0rc3
------
* The HDF5 format has changed.
* The datasets are located in the HDF5 subgroup ``datasets``.
* Datasets are now stored without additional type conversions and annotations
from ARTIQ, trusting that h5py maps and converts types between HDF5 and
python/numpy "as expected".
* NumberValue now returns an integer if ``ndecimals`` = 0, ``scale`` = 1 and
``step`` is integer.
1.0rc2
------
* The CPU speed in the pipistrello gateware has been reduced from 83 1/3 MHz to
75 MHz. This will reduce the achievable sustained pulse rate and latency
accordingly. ISE was intermittently failing to meet timing (#341).
* set_dataset in broadcast mode no longer returns a Notifier. Mutating datasets
should be done with mutate_dataset instead (#345).
1.0rc1
------
* Experiments (your code) should use ``from artiq.experiment import *``
(and not ``from artiq import *`` as previously)
* Core device flash storage has moved due to increased runtime size.
This requires reflashing the runtime and the flash storage filesystem image
or erase and rewrite its entries.
* ``RTIOCollisionError`` has been renamed to ``RTIOCollision``
* the new API for DDS batches is::
with self.core_dds.batch:
...
with ``core_dds`` a device of type ``artiq.coredevice.dds.CoreDDS``.
The dds_bus device should not be used anymore.
* LinearScan now supports scanning from high to low. Accordingly,
its arguments ``min/max`` have been renamed to ``start/stop`` respectively.
Same for RandomScan (even though there direction matters little).