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R16B is a major new release of Erlang/OTP. Detailed information on changes can be fetched at http://www.erlang.org/download/otp_src_R16B.readme --- HIGHLIGHTS ---------------------------------------------------------- OTP-7786 == ssh == Added User Guide for the SSH application OTP-9892 == erts == Process optimizations. The most notable: -- New internal process table implementation allowing for both parallel reads as well as writes. Especially read operations have become really cheap. This reduce contention in various situations. For example when, spawning processes, terminating processes, sending messages, etc. -- Optimizations of run queue management reducing contention. -- Optimizations of process state changes reducing contention. These changes imply changes of the characteristics the system. Most notable: changed timing in the system. OTP-9974 == erts == Non-blocking code loading. Earlier when an Erlang module was loaded, all other execution in the VM were halted while the load operation was carried out in single threaded mode. Now modules are loaded without blocking the VM. Processes may continue executing undisturbed in parallel during the entire load operation. The load operation is completed by making the loaded code visible to all processes in a consistent way with one single atomic instruction. Non-blocking code loading will improve realtime characteristics when modules are loaded/upgraded on a running SMP system. OTP-10256 == inets == httpc: The HTTP client now supports HTTPS through proxies OTP-10336 == erts == Major port improvements. The most notable: -- New internal port table implementation allowing for both parallel reads as well as writes. Especially read operations have become really cheap.This reduce contention in various situations. For example when, creating ports, terminating ports, etc. -- Dynamic allocation of port structures. This allow for a much larger maximum amount of ports allowed as a default. The previous default of 1024 has been raised to 65536. Maximum amount of ports can be set using the +Q command line flag of erl(1). The previously used environment variable ERL_MAX_PORTS has been deprecated and scheduled for removal in OTP-R17. -- Major rewrite of scheduling of port tasks. Major benefits of the rewrite are reduced contention on run queue locks, and reduced amount of memory allocation operations needed. The rewrite was also necessary in order to make it possible to schedule signals from processes to ports. -- Improved internal thread progress functionality for easy management of unmanaged threads. This improvement was necessary for the rewrite of the port task scheduling. -- Rewrite of all process to port signal implementations in order to make it possible to schedule those operations. All port operations can now be scheduled which allows for reduced lock contention on the port lock as well as truly asynchronous communication with ports. -- Optimized lookup of port handles from drivers. -- Optimized driver lookup when creating ports. -- Preemptable erlang:ports/0 BIF. -- Improving responsiveness by bumping reductions for a process calling a driver callback directly. These changes imply changes of the characteristics of the system. The most notable: -- Order of signal delivery -- The previous implementation of the VM has delivered signals from processes to ports in a synchronous stricter fashion than required by the language. As of ERTS version 5.10, signals are truly asynchronously delivered. The order of signal delivery still adheres to the requirements of the language, but only to the requirements. That is, some signal sequences that previously always were delivered in one specific order may now from time to time be delivered in different orders. This may cause Erlang programs that have made false assumptions about signal delivery order to fail even though they previously succeeded. For more information about signal ordering guarantees, see the chapter on communication in the ERTS user's guide. The +n command line flag of erl(1) can be helpful when trying to find signaling order bugs in Erlang code that have been exposed by these changes. -- Latency of signals sent from processes to ports -- Signals from processes to ports where previously always delivered immediately. This kept latency for such communication to a minimum, but it could cause lock contention which was very expensive for the system as a whole. In order to keep this latency low also in the future, most signals from processes to ports are by default still delivered immediately as long as no conflicts occur. Such conflicts include not being able to acquire the port lock, but also include other conflicts. When a conflict occur, the signal will be scheduled for delivery at a later time. A scheduled signal delivery may cause a higher latency for this specific communication, but improves the overall performance of the system since it reduce lock contention between schedulers. The default behavior of only scheduling delivery of these signals on conflict can be changed by passing the +spp command line flag to erl(1). The behavior can also be changed on port basis using the parallelism option of the open_port/2 BIF. -- Execution time of the erlang:ports/0 BIF -- Since erlang:ports/0 now can be preempted, the responsiveness of the system as a whole has been improved. A call to erlang:ports/0 may, however, take a much longer time to complete than before. How much longer time heavily depends on the system load. -- Reduction cost of calling driver callbacks -- Calling a driver callback is quite costly. This was previously not reflected in reduction cost at all. Since the reduction cost now has increased, a process performing lots of direct driver calls will be scheduled out more frequently than before. Potential incompatibilities: -- driver_send_term() has been deprecated and has been scheduled for removal in OTP-R17. Replace usage of driver_send_term() with usage of erl_drv_send_term(). -- driver_output_term() has been deprecated and has been scheduled for removal in OTP-R17. Replace usage of driver_output_term() with usage of erl_drv_output_term(). -- The new function erl_drv_busy_msgq_limits() has been added in order to able to control management of port queues. The driver API version has been bumped to 2.1 from 2.0 due to the above changes in the driver API. OTP-10410 == asn1 == The options for the ASN.1 compiler has been drastically simplified. The backend is chosen by using ber, per, or uper. The options optimize, nif, and driver are no longer needed. The old options will still work, but will issue a warning. Another change is that generated encode/2 function will always return a binary (some backends used to return an iolist). OTP-10588 == asn1 == The ASN.1 compiler will now always include necessary run-time functions in the generated Erlang modules (except for asn1rt_nif which is still neeeded). If the option 'inline' is used the ASN.1 compiler will generate a warning. But if '{inline,OutputFile}' is use, the ASN.1 compiler will refuse to compile the file. (Use a .set.asn file if you need to remove the output file.) The 'BIT STRING' type will now be decoded as Erlang bitstrings by default. Use the new legacy_bit_string option to encode as lists of ones and zeroes. (The compact_bit_string option still works as before.) Open types are now always returned as binaries (when there is no information allowing them to be decoded). --- POTENTIAL INCOMPATIBILITIES ----------------------------------------- OTP-9052 == common_test == Removed depricated run_test program, use ct_run instead. OTP-9881 == common_test == It is now possible to let a test specification include other test specifications. Included specs can either be joined with the source spec (and all other joined specs), resulting in one single test run, or they can be executed in separate test runs. Also, a start flag/option, join_specs, has been introduced, to be used in combination with the spec option. With join_specs, Common Test can be told to either join multiple test specifications, or run them separately. Without join_specs, the latter behaviour is default. Note that this is a change compared to earlier versions of Common Test, where specifications could only be joined. More information can be found in the Running Tests chapter in the User's Guide (see the Test Specifications section). OTP-10117 == inviso == The inviso application has been removed. OTP-10170 == erts pman == Tuple funs (deprecated in R15B) are no longer supported. OTP-10195 == edoc == Since EDoc 0.7.7 (R14B02) separate values of union types can be annotated. However, the parser has hitherto chosen not to add the necessary parentheses due to backwards compatibility. From this release on code traversing the output of edoc_parser needs to take care of parentheses around separate values of union types. Examples of such code are layout modules and doclet modules. OTP-10336 == erts == Major port improvements. The most notable: -- New internal port table implementation allowing for both parallel reads as well as writes. Especially read operations have become really cheap.This reduce contention in various situations. For example when, creating ports, terminating ports, etc. -- Dynamic allocation of port structures. This allow for a much larger maximum amount of ports allowed as a default. The previous default of 1024 has been raised to 65536. Maximum amount of ports can be set using the +Q command line flag of erl(1). The previously used environment variable ERL_MAX_PORTS has been deprecated and scheduled for removal in OTP-R17. -- Major rewrite of scheduling of port tasks. Major benefits of the rewrite are reduced contention on run queue locks, and reduced amount of memory allocation operations needed. The rewrite was also necessary in order to make it possible to schedule signals from processes to ports. -- Improved internal thread progress functionality for easy management of unmanaged threads. This improvement was necessary for the rewrite of the port task scheduling. -- Rewrite of all process to port signal implementations in order to make it possible to schedule those operations. All port operations can now be scheduled which allows for reduced lock contention on the port lock as well as truly asynchronous communication with ports. -- Optimized lookup of port handles from drivers. -- Optimized driver lookup when creating ports. -- Preemptable erlang:ports/0 BIF. -- Improving responsiveness by bumping reductions for a process calling a driver callback directly. These changes imply changes of the characteristics of the system. The most notable: -- Order of signal delivery -- The previous implementation of the VM has delivered signals from processes to ports in a synchronous stricter fashion than required by the language. As of ERTS version 5.10, signals are truly asynchronously delivered. The order of signal delivery still adheres to the requirements of the language, but only to the requirements. That is, some signal sequences that previously always were delivered in one specific order may now from time to time be delivered in different orders. This may cause Erlang programs that have made false assumptions about signal delivery order to fail even though they previously succeeded. For more information about signal ordering guarantees, see the chapter on communication in the ERTS user's guide. The +n command line flag of erl(1) can be helpful when trying to find signaling order bugs in Erlang code that have been exposed by these changes. -- Latency of signals sent from processes to ports -- Signals from processes to ports where previously always delivered immediately. This kept latency for such communication to a minimum, but it could cause lock contention which was very expensive for the system as a whole. In order to keep this latency low also in the future, most signals from processes to ports are by default still delivered immediately as long as no conflicts occur. Such conflicts include not being able to acquire the port lock, but also include other conflicts. When a conflict occur, the signal will be scheduled for delivery at a later time. A scheduled signal delivery may cause a higher latency for this specific communication, but improves the overall performance of the system since it reduce lock contention between schedulers. The default behavior of only scheduling delivery of these signals on conflict can be changed by passing the +spp command line flag to erl(1). The behavior can also be changed on port basis using the parallelism option of the open_port/2 BIF. -- Execution time of the erlang:ports/0 BIF -- Since erlang:ports/0 now can be preempted, the responsiveness of the system as a whole has been improved. A call to erlang:ports/0 may, however, take a much longer time to complete than before. How much longer time heavily depends on the system load. -- Reduction cost of calling driver callbacks -- Calling a driver callback is quite costly. This was previously not reflected in reduction cost at all. Since the reduction cost now has increased, a process performing lots of direct driver calls will be scheduled out more frequently than before. Potential incompatibilities: -- driver_send_term() has been deprecated and has been scheduled for removal in OTP-R17. Replace usage of driver_send_term() with usage of erl_drv_send_term(). -- driver_output_term() has been deprecated and has been scheduled for removal in OTP-R17. Replace usage of driver_output_term() with usage of erl_drv_output_term(). -- The new function erl_drv_busy_msgq_limits() has been added in order to able to control management of port queues. The driver API version has been bumped to 2.1 from 2.0 due to the above changes in the driver API. OTP-10410 == asn1 == The options for the ASN.1 compiler has been drastically simplified. The backend is chosen by using ber, per, or uper. The options optimize, nif, and driver are no longer needed. The old options will still work, but will issue a warning. Another change is that generated encode/2 function will always return a binary (some backends used to return an iolist). OTP-10417 == kernel sasl == It is no longer possible to have {Mod,Vsn} in the 'modules' list in a .app file. This was earlier possible, although never documented in the .app file reference manual. It was however visible in the documentation of application:load/[1,2], where the same term as in a .app file can be used as the first argument. The possibility has been removed since the Vsn part was never used. OTP-10451 == ssl == Remove filter mechanisms that made error messages backwards compatible with old ssl but hid information about what actually happened. This does not break the documented API however other reason terms may be returned, so code that matches on the reason part of {error, Reason} may fail. OTP-10490 == stdlib == If a child process fails in its start function, then the error reason was earlier only reported as an error report from the error_handler, and supervisor:start_link would only return {error,shutdown}. This has been changed so the supervisor will now return {error,{shutdown,Reason}}, where Reason identifies the failing child and its error reason. (Thanks to Tomas Pihl) OTP-10523 == tools == A new function, cover:flush(Nodes), is added which will fetch data from remote nodes without stopping cover on those nodes. This is used by test_server and common_test when it is safe to assume that the node will be terminated after the test anyway. The purpose is to avoid processes crashing when re-loading the original beam if the processes is still running old code. Remote nodes will now continue to count code coverage if the connection to the main node is broken. Earlier, a broken connection would cause the cover_server on the remote node to die and thus any still cover compiled modules would cause process crash when trying to insert cover data in ets tables that used to exist on the cover_server. The new functionality also involves synchronization with the main node if the nodes are reconnected. OTP-10588 == asn1 == The ASN.1 compiler will now always include necessary run-time functions in the generated Erlang modules (except for asn1rt_nif which is still neeeded). If the option 'inline' is used the ASN.1 compiler will generate a warning. But if '{inline,OutputFile}' is use, the ASN.1 compiler will refuse to compile the file. (Use a .set.asn file if you need to remove the output file.) The 'BIT STRING' type will now be decoded as Erlang bitstrings by default. Use the new legacy_bit_string option to encode as lists of ones and zeroes. (The compact_bit_string option still works as before.) Open types are now always returned as binaries (when there is no information allowing them to be decoded). OTP-10613 == ssl == Removed deprecated function ssl:pid/0, it has been pointless since R14 but has been keep for backwards compatibility. OTP-10633 == erts == Erlang specification 4.7.3 defines max tuple size to 65535 elements It is now enforced to no more than 16777215 elements (arity 24 bits) Previous edge cases (28 bits) were not validated and could cause undefined behaviour. OTP-10647 == erts == The previous default of a maximum of 32768 simultaneous processes has been raised to 262144. This value can be changed using the the +P command line flag of erl(1). Note that the value passed now is considered as a hint, and that actual value chosen in most cases will be a power of two. OTP-10812 == stdlib == filelib:wildcard("some/relative/path/*.beam", Path) would fail to match any file. That is, filelib:wildcard/2 would not work if the first component of the pattern did not contain any wildcard characters. (A previous attempt to fix the problem in R15B02 seems to have made matters worse.) (Thanks to Samuel Rivas and Tuncer Ayaz.) There is also an incompatible change to the Path argument. It is no longer allowed to be a binary. OTP-10872 == erts == As of ERTS-5.10/OTP-R16A node names passed in the EPMD protocol are required to be encoded in UTF-8. Since EPMD previously accepted latin1 encoded node names this is an incompatibility. However, since Erlang nodes always have required characters in node names to be 7-bit ASCII characters (and still do require this), this incompatibility should not effect anyone using EPMD as an Erlang Port Mapper Daemon.
80 lines
2 KiB
Text
80 lines
2 KiB
Text
# $NetBSD: Makefile.versions,v 1.16 2013/06/08 06:48:24 asau Exp $
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ERLANG_VERSION= 16.1
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DIST_VERSION_MAJOR= R16B
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#DIST_VERSION_MINOR= 1
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_VERSIONS= \
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appmon 2.1.14.2 \
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asn1 2.0.1 \
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common_test 1.7.1 \
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compiler 4.9.1 \
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cosEvent 2.1.13 \
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cosEventDomain 1.1.13 \
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cosFileTransfer 1.1.14 \
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cosNotification 1.1.19 \
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cosProperty 1.1.16 \
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cosTime 1.1.13 \
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cosTransactions 1.2.13 \
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crypto 2.3 \
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debugger 3.2.10 \
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dialyzer 2.6 \
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diameter 1.4.1 \
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docbuilder 0.9.8.10 \
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edoc 0.7.12 \
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eldap 1.0.1 \
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erl_docgen 0.3.4 \
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erl_interface 3.7.11 \
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erts 5.10.1 \
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et 1.4.4.3 \
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eunit 2.2.4 \
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gs 1.5.15.2 \
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hipe 3.10.1 \
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ic 4.3.1 \
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inets 5.9.4 \
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jinterface 1.5.8 \
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kernel 2.16.1 \
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megaco 3.16.0.3 \
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mnesia 4.8 \
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observer 1.3 \
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odbc 2.10.15 \
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orber 3.6.25 \
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os_mon 2.2.11 \
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otp_mibs 1.0.8 \
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parsetools 2.0.9 \
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percept 0.8.8 \
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pman 2.7.1.4 \
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public_key 0.18 \
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reltool 0.6.3 \
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runtime_tools 1.8.10 \
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sasl 2.3.1 \
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snmp 4.23.1 \
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ssh 2.1.4 \
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ssl 5.2.1 \
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stdlib 1.19.1 \
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syntax_tools 1.6.11 \
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test_server 3.6.1 \
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toolbar 1.4.2.3 \
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tools 2.6.10 \
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tv 2.1.4.10 \
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typer 0.9.5 \
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webtool 0.8.9.2 \
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wx 1.0 \
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xmerl 1.3.3
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PLIST_SUBST+= VERSION=${DIST_VERSION_MAJOR}
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.for name version in ${_VERSIONS}
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VERSION.${name}=${version}
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PLIST_SUBST+= VERSION.${name}=${version}
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.endfor
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# Generate PLIST
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.for _pkg_ _version_ in $(_VERSIONS)
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PRINT_PLIST_AWK+= {if ($$0 ~ /\/$(_pkg_)-$(_version_)\//) {sub(/\/$(_pkg_)-$(_version_)\//,"/$(_pkg_)-$${VERSION.$(_pkg_)}/", $$0);}}
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# documentation:
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PRINT_PLIST_AWK+= {gsub(/\/$(_pkg_)-$(_version_)\.pdf/,"/$(_pkg_)-$${VERSION.$(_pkg_)}.pdf", $$0);}
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.endfor
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PRINT_PLIST_AWK+= {if ($$0 ~ /\/releases\/${DIST_VERSION_MAJOR}\//) {sub(/\/releases\/${DIST_VERSION_MAJOR}\//,"/releases/$${VERSION}/", $$0);}}
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# documentation:
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PRINT_PLIST_AWK+= {gsub(/\/otp-system-documentation-$(VERSION.erts)\.pdf/,"/otp-system-documentation-$${VERSION.erts}.pdf", $$0);}
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