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Diffstat (limited to 'lib/kernel/doc/src/notes.xml')
| -rw-r--r-- | lib/kernel/doc/src/notes.xml | 276 |
1 files changed, 266 insertions, 10 deletions
diff --git a/lib/kernel/doc/src/notes.xml b/lib/kernel/doc/src/notes.xml index 7eaf2d4a44..76db0c201f 100644 --- a/lib/kernel/doc/src/notes.xml +++ b/lib/kernel/doc/src/notes.xml @@ -8,16 +8,17 @@ <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> - The contents of this file are subject to the Erlang Public License, - Version 1.1, (the "License"); you may not use this file except in - compliance with the License. You should have received a copy of the - Erlang Public License along with this software. If not, it can be - retrieved online at http://www.erlang.org/. - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - the License for the specific language governing rights and limitations - under the License. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. </legalnotice> @@ -30,6 +31,261 @@ </header> <p>This document describes the changes made to the Kernel application.</p> +<section><title>Kernel 4.1</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>A mechanism for limiting the amount of text that the + built-in error logger events will produce has been + introduced. It is useful for limiting both the size of + log files and the CPU time used to produce them.</p> + <p>This mechanism is experimental in the sense that it + may be changed if it turns out that it does not solve the + problem it is supposed to solve. In that case, there may + be backward incompatible improvements to this + mechanism.</p> + <p>See the documentation for the config parameter + <c>error_logger_format_depth</c> in the Kernel + application for information about how to turn on this + feature.</p> + <p> + Own Id: OTP-12864</p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 4.0</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix error handling in <c>file:read_line/1</c> for Unicode + contents.</p> + <p> + Own Id: OTP-12144</p> + </item> + <item> + <p> + Introduce <c>os:getenv/2</c> which is similar to + <c>os:getenv/1</c> but returns the passed default value + if the required environment variable is undefined.</p> + <p> + Own Id: OTP-12342</p> + </item> + <item> + <p> + It is now possible to paste text in JCL mode (using + Ctrl-Y) that has been copied in the previous shell + session. Also a bug that caused the JCL mode to crash + when pasting text has been fixed.</p> + <p> + Own Id: OTP-12673</p> + </item> + <item> + <p> + Ensure that each segment of an IPv6 address when parsed + from a string has a maximum of 4 hex digits</p> + <p> + Own Id: OTP-12773</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + New BIF: <c>erlang:get_keys/0</c>, lists all keys + associated with the process dictionary. Note: + <c>erlang:get_keys/0</c> is auto-imported.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-12151 Aux Id: seq12521 </p> + </item> + <item> + <p> + The internal group to user_drv protocol has been changed + to be synchronous in order to guarantee that output sent + to a process implementing the user_drv protocol is + printed before replying. This protocol is used by the + standard_output device and the ssh application when + acting as a client. </p> + <p> + This change changes the previous unlimited buffer when + printing to standard_io and other devices that end up in + user_drv to 1KB.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-12240</p> + </item> + <item> + <p>The <c>inflateInit/2</c> and <c>deflateInit/6</c> + functions now accepts a WindowBits argument equal to 8 + and -8.</p> + <p> + Own Id: OTP-12564</p> + </item> + <item> + <p> + Map error logger warnings to warning messages by default.</p> + <p> + Own Id: OTP-12755</p> + </item> + <item> + <p> + Map beam error logger warnings to warning messages by + default. Previously these messages were mapped to the + error channel by default.</p> + <p> + Own Id: OTP-12781</p> + </item> + <item> + <p> + gen_tcp:shutdown/2 is now asynchronous</p> + <p> + This solves the following problems with the old + implementation:</p> + <p> + It doesn't block when the TCP peer is idle or slow. This + is the expected behaviour when shutdown() is called: the + caller needs to be able to continue reading from the + socket, not be prevented from doing so.</p> + <p> + It doesn't truncate the output. The current version of + gen_tcp:shutdown/2 will truncate any outbound data in the + driver queue after about 10 seconds if the TCP peer is + idle of slow. Worse yet, it doesn't even inform anyone + that the data has been truncated: 'ok' is returned to the + caller; and a FIN rather than an RST is sent to the TCP + peer.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-12797</p> + </item> + <item> + <p> + There are many cases where user code needs to be able to + distinguish between a socket that was closed normally and + one that was aborted. Setting the option + {show_econnreset, true} enables the user to receive + ECONNRESET errors on both active and passive sockets.</p> + <p> + Own Id: OTP-12843</p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A bug causing an infinite loop in hostname resolving has + been corrected. To trigger this bug you would have to + enter an bogus search method from a configuration file + e.g .inetrc.</p> + <p> + Bug pinpointed by Emil Holmström</p> + <p> + Own Id: OTP-12133</p> + </item> + <item> + <p> + The standard_error process now handles the getopts I/O + protocol request correctly and stores its encoding in the + same way as standard_io.</p> + <p> + Also, io:put_chars(standard_error, [oops]) could + previously crash the standard_error process. This is now + corrected.</p> + <p> + Own Id: OTP-12424</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Configuration parameters for the Kernel application that + allows setting socket options for the distribution + sockets have been added. See the application Kernel + documentation; parameters 'inet_dist_listen_options' and + 'inet_dist_connect_options'.</p> + <p> + Own Id: OTP-12476 Aux Id: OTP-12476 </p> + </item> + </list> + </section> + +</section> + +<section><title>Kernel 3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Make sure to install .hrl files when needed</p> + <p> + Own Id: OTP-12197</p> + </item> + <item> + <p> + Removed the undocumented application environment variable + 'raw_files' from the kernel application. This variable + was checked (by call to application:get_env/2) each time + a raw file was to be opened in the file module.</p> + <p> + Own Id: OTP-12276</p> + </item> + <item> + <p> + A bug has been fixed when using the netns option to + gen_udp, which accidentally only worked if it was the + last option.</p> + <p> + Own Id: OTP-12314</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Updated documentation for inet buffer size options.</p> + <p> + Own Id: OTP-12296</p> + </item> + <item> + <p> + Introduce new option 'raw' in file_info and link_info + functions. This option allows the caller not to go + through the file server for information about files + guaranteed to be local.</p> + <p> + Own Id: OTP-12325</p> + </item> + </list> + </section> + +</section> + <section><title>Kernel 3.0.3</title> <section><title>Fixed Bugs and Malfunctions</title> |