From 32275a2fc0b86d1f1b124706afc80f3ff92216eb Mon Sep 17 00:00:00 2001 From: Hans Nilsson Date: Wed, 31 May 2017 16:21:00 +0200 Subject: Revert "Prepare release" This reverts commit eaf8ca41dfa4850437ad270d3897399c9358ced0. --- lib/stdlib/doc/src/notes.xml | 412 ------------------------------------------- 1 file changed, 412 deletions(-) (limited to 'lib/stdlib/doc/src/notes.xml') diff --git a/lib/stdlib/doc/src/notes.xml b/lib/stdlib/doc/src/notes.xml index fad0896d9b..a8a252cb35 100644 --- a/lib/stdlib/doc/src/notes.xml +++ b/lib/stdlib/doc/src/notes.xml @@ -31,418 +31,6 @@

This document describes the changes made to the STDLIB application.

-
STDLIB 3.4 - -
Fixed Bugs and Malfunctions - - -

For many releases, it has been legal to override a BIF - with a local function having the same name. However, - calling a local function with the same name as guard BIF - as filter in a list comprehension was not allowed.

-

- Own Id: OTP-13690

- - -

A new (default) pseudo-random number generator - algorithm Xoroshiro116+ has been implemented in the - rand module.

The old algorithm - implementations had a number of flaws so they are all - deprecated, but corrected versions of two of them have - been added. See the documentation.

-

- Own Id: OTP-14295 Aux Id: PR-1372

- - -

The Erlang shell, qlc:string_to_handle(), and - the Debugger (the Evaluator area and Edit variable window - of the Bindings area) can parse pids, ports, references, - and external funs, as long as they can be created in the - running system.

-

- Own Id: OTP-14296

- - -

Internal code change: Calls to catch followed - by a call to erlang:get_stacktrace/0 has been - rewritten to use try instead of catch to - make the code future-proof.

-

- Own Id: OTP-14400

- - -

The state machine engine gen_statem can now - handle generic time-outs (multiple named) as well as - absolute time-out time. See the documentation.

- The gen_statem callback Module:init/1 has - become mandatory to harmonize with other gen_* - modules. This may be an incompatibility for - gen_statem callback modules that use - gen_statem:enter_loop/4-6.

-

- *** POTENTIAL INCOMPATIBILITY ***

-

- Own Id: OTP-14531

- - -
- - -
Improvements and New Features - - -

- Improved unicode support for strings. Added normalization - functions in the unicode module. Extended the - string module API with new functions with improved - unicode handling and that works on grapheme clusters. The - new functions operates on the unicode:chardata() - type, thus they also accept UTF-8 binaries as - input.

-

- The old string API have been marked as obsolete. The - return values have been changed for some error cases.

-

- *** POTENTIAL INCOMPATIBILITY ***

-

- Own Id: OTP-10289 Aux Id: OTP-10309

- - -

There are two new guard BIFs 'floor/1' and - 'ceil/1'. They both return integers. In the - 'math' module, there are two new BIFs with the - same names that return floating point values.

-

- Own Id: OTP-13692

- - -

- Making code_change, terminate and handle_info callbacks - optional in the OTP behaviours.

-

- Own Id: OTP-13801

- - -

The support for Dets files created with Erlang/OTP R7 - and earlier is removed.

-

- Own Id: OTP-13830

- - -

Replaced usage of deprecated symbolic time - unit representations.

-

- Own Id: OTP-13831 Aux Id: OTP-13735

- - -

The function fmod/2 has been added to the - math module.

-

- Own Id: OTP-14000

- - -

The EXIT signals received from processes using - proc_lib now looks like EXIT signals from - processes that were spawned using spawn_link. In - particular, that means that the stack trace is now - included in the EXIT signal so that it can see where the - process crashed.

-

- Own Id: OTP-14001

- - -

sets:add_element/2 is faster when adding an - element that is already present, and - sets:del_element/2 is faster when the element to - be deleted is not present. This optimization can make - certain operations, such as sets:union/2 with many - overlapping elements, up to two orders of magnitude - faster.

-

- Own Id: OTP-14035

- - -

- Add information in doc about supervisor shutdown reason - when maximum restart frequency is reached.

-

- Own Id: OTP-14037 Aux Id: PR-1233

- - -

- Added rand:jump/[0|1] functions.

-

- Own Id: OTP-14038 Aux Id: PR-1235

- - -

Functions for detecting changed code has been added. - code:modified_modules/0 returns all currently - loaded modules that have changed on disk. - code:module_status/1 returns the status for a - module. In the shell and in c module, mm/0 - is short for code:modified_modules/0, and - lm/0 reloads all currently loaded modules that - have changed on disk.

-

- Own Id: OTP-14059

- - -

Each assert macro in assert.hrl now has a - corresponding version with an extra argument, for adding - comments to assertions. These can for example be printed - as part of error reports, to clarify the meaning of the - check that failed.

-

- Own Id: OTP-14066

- - -

error_logger_tty_h and - error_logger_file_h now inserts the node - information for nonlocal messages before the message - itself instead of after, both for readability and so as - not to change the line termination property at the end of - the message.

-

- Own Id: OTP-14068

- - -

The Erlang code linter checks for badly formed type - constraints.

-

- Own Id: OTP-14070 Aux Id: PR-1214

- - -

By default, there will now be a warning when - export_all is used. The warning can be disabled - using nowarn_export_all.

-

- Own Id: OTP-14071

- - -

When a gen_server process crashes, the - stacktrace for the client will be printed to facilitate - debugging.

-

- Own Id: OTP-14089

- - -

- Optimized ETS operations by changing table identifier - type from integer to reference. The reference enables a - more direct mapping to the table with less potential lock - contention and makes especially creation and deletion of - tables scale much better.

-

- The change of the opaque type for the ETS table - identifiers may cause failure in code that make faulty - assumptions about this opaque type.

-

- *** POTENTIAL INCOMPATIBILITY ***

-

- Own Id: OTP-14094

- - -

take/2 has been added to dict, - orddict, and gb_trees. take_any/2 - has been added to gb_trees.

-

- Own Id: OTP-14102

- - -

- Extend gen_event API to handle options as well.

-

- Own Id: OTP-14123

- - -

- Advice on how to tune the supervisor restart frequency - (intensity and period) is added to System Documentation - - Design Principles - Supervisor Behaviour.

-

- Own Id: OTP-14168 Aux Id: PR-1289

- - -

- gen_fsm is deprecated and is replaced by gen_statem, - however for backwards compatibility reasons gen_fsm may - continue to exist as an undocumented feature for quite - some time.

-

- Own Id: OTP-14183

- - -

The shell functions c/1 and c/2 have - been extended so that if the argument is a module name - instead of a file name, it automatically locates the - .beam file and the corresponding source file, and then - recompiles the module using the same compiler options - (plus any options passed to c/2). If compilation fails, - the old beam file is preserved. Also adds c(Mod, Opts, - Filter), where the Filter argument allows you to - remove old compiler options before the new options are - added.

New utility functions file_find/2/3 - and find_source/1/2/3 have been added to - filelib.

-

- Own Id: OTP-14190

- - -

erl_tar in previous versions of OTP only - supports the USTAR format. That limited path names to at - most 255 bytes, and did not support Unicode characters in - names in a portable way.

-

erl_tar now has support for reading tar - archives in the formats currently in common use, such as - v7, STAR, USTAR, PAX, and GNU tar's extensions to the - STAR/USTAR format. When writing tar archives, - erl_tar can now write them in the PAX - format if necessary (for example, to support very long - filenames or filenames with Unicode characters). If - possible, erl_tar will still write tar archives in - the USTAR for maximum portability.

-

- Own Id: OTP-14226

- - -

base64:mime_decode/1 has been optimized so that - it is now almost as fast asbase64:decode/1; it - used be noticably slower.

-

- Own Id: OTP-14245

- - -

erl_tar will now strip any leading '/' - from pathnames when extracting files from a tar archive - and write a message to the error logger. There is also - new check for directory traversal attacks; if a relative - path points above the current working directory the - extraction will be aborted.

-

- Own Id: OTP-14278

- - -

Miscellaneous updates due to atoms containing - arbitrary Unicode characters.

-

- Own Id: OTP-14285

- - -

- The Crypto application now supports generation of - cryptographically strong random numbers (floats < 1.0 - and integer arbitrary ranges) as a plugin to the 'rand' - module.

-

- Own Id: OTP-14317 Aux Id: PR-1372

- - -

- Add new function ets:select_replace/2 which - performs atomic "compare-and-swap" operations for ETS - objects using match specifications.

-

- Own Id: OTP-14319 Aux Id: PR-1076

- - -

The Erlang code linter checks for bad dialyzer - attributes. It also checks for bad type variables in type - declarations.

-

- Own Id: OTP-14323

- - -

Two new functions has been implemented in the - rand module; normal/2 and - normal_s/3, that both produce normal distribution - (pseudo) random numbers with mean value and variance - according to arguments.

-

- Own Id: OTP-14328 Aux Id: PR-1382

- - -

- Upgraded the OTP internal PCRE library from version 8.33 - to version 8.40. This library is used for implementation - of the re - regular expressions module.

-

- Besides various bug fixes, the new version allows for - better stack protection. In order to utilize this - feature, the stack size of normal scheduler threads is - now by default set to 128 kilo words on all platforms. - The stack size of normal scheduler threads can be set - upon system start by passing the +sss - command line argument to the erl command.

-

- See http://pcre.org/original/changelog.txt - for information about changes made to PCRE between the - versions 8.33 and 8.40.

-

- *** POTENTIAL INCOMPATIBILITY ***

-

- Own Id: OTP-14331 Aux Id: ERL-208

- - -

- Added function re:version/0 which returns - information about the OTP internal PCRE version used for - implementation of the re module.

-

- Own Id: OTP-14347 Aux Id: PR-1412

- - -

The format of debug information that is stored in BEAM - files (when debug_info is used) has been changed. - The purpose of the change is to better support other - BEAM-based languages such as Elixir or LFE.

-

All tools included in OTP (dialyzer, debugger, cover, - and so on) will handle both the new format and the - previous format. Tools that retrieve the debug - information using beam_lib:chunk(Beam, - [abstract_code]) will continue to work with both the - new and old format. Tools that call - beam_lib:chunk(Beam, ["Abst"]) will not work with - the new format.

-

For more information, see the description of - debug_info in the documentation for - beam_lib and the description of the - {debug_info,{Backend,Data}} option in the - documentation for compile.

-

- Own Id: OTP-14369 Aux Id: PR-1367

- - -

- Add option hibernate_after to gen_server, gen_statem and - gen_event. Also added to the deprecated gen_fsm - behaviour.

-

- Own Id: OTP-14405

- - -

The size of crash reports created by - gen_server, gen_statem and proc_lib - is limited with aid of the Kernel application variable - error_logger_format_depth. The purpose is to limit - the size of the error_logger process when - processes with huge message queues or states crash.

-

The new function - error_logger:get_format_depth/0 can be used to - retrieve the value of the Kernel application variable - error_logger_format_depth.

-

- Own Id: OTP-14417

- - -
- -
-
STDLIB 3.3
Fixed Bugs and Malfunctions -- cgit v1.2.3