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[[Dyalog APL]] is released in numbered versions, with approximately one version per year. Each release version is classified as a major (.0) or minor (point) release, depending on whether the major version number is incremented. Major versions are more likely to introduce new features and may spend longer in development. | [[Dyalog APL]] is released in numbered versions, with approximately one version per year. Each release version is classified as a major (.0) or minor (point) release, depending on whether the major version number is incremented. Major versions are more likely to introduce new features and may spend longer in development. | ||
== 10.0 == | |||
Version 10.0 was released March 2003. It incorporated aspects of [[.NET]] support that had been part of Dyalog.NET, as well as other miscellaneous improvements to the language, interface, and performance. | |||
The new constant value <source lang=apl inline>⎕NULL</source> was added for better integration with .NET. Another new [[system function]], <source lang=apl inline>⎕NLOCK</source>, was added for file locking support. Two features were added to <source lang=apl inline>:For</source> loops: the <source lang=apl inline>:InEach</source> [[keyword]] for iterating simultaneously along several arrays, and automatic handling of [[.NET]] COM collections. | |||
This release added keyword completion (AutoCompletion) and syntax colouring in the [[session]]. New performance features were added: [[Idiom recognition|recognised idioms]] were combinations of tokens supported by special code, and binding a search function ([[Index of]] or [[Membership]]) to its principal argument invoked the new retained hash table mechanism, saving the work of creating a hash table for that argument every time the search function was called after the first. The APLScript mechanism, allowing source files to be converted to workspaces for distribution, was also added. The resulting executables could be distributed with a copy of Dyalog APL in library form. | |||
== 10.1 == | |||
Version 10.1 was released July 2004. It allowed [[tradfn]] arguments and results to be composed of multiple variables (much like [[stranding]]) and featured improved thread handling, including a token pool mechanism for synchronisation. In preparation for the upcoming 64-bit release in version 11.0, it added support for 64-bit [[component file]]s, which increased the 4GB limit on component file sizes imposed by 32-bit files. | |||
[[System function]]s <source lang=apl inline>⎕TPUT</source> and <source lang=apl inline>⎕TGET</source> were added to manage threads, along with the system variable <source lang=apl inline>⎕TPOOL</source> and function <source lang=apl inline>⎕TREQ</source> to report on existing threads and requests. The current thread name can be found with the new system function <source lang=apl inline>⎕TNAME</source>. | |||
File handling system functions such as <source lang=apl inline>⎕FCREATE</source> were extended to allow 0 as an input tie number, to indicate that the smallest available tie number should be used (0 is not a valid option). The release also featured further improvements to the [[session]] such as filename completion for workspace commands. | |||
== 11.0 == | |||
[http://help.dyalog.com/12.1/html/interoperability.htm Release notes] ([http://docs.dyalog.com/12.0/Dyalog%20APL%20Release%20Notes.v11.0.pdf pdf]) | |||
Version 11.0 was released October 2006, and was released for both 32- and 64-bit systems—Dyalog's first 64-bit release aside from a much earlier [[wikipedia:DEC Alpha|DEC Alpha]] release. It introduced [[object-oriented programming]] extensions designed to work like [[.NET]] and based technologically on the existing [[namespace]]s. The primary new features were classes, instances (objects), and interfaces, supporting inheritance, access control, and constructors and destructors. Instances could be placed in arrays, and [[empty]] arrays could store the class of an instance in the [[prototype]]. When instantiated (for instance by taking the [[First]] element of an empty array), a prototype object would be created using the class's [[niladic]] constructor, if present. Classes could interact with namespaces by importing their functions as methods. Dyalog's Windows GUI framework, already based on .NET classes, was integrated with the new Dyalog classes. | |||
New [[Quad name]]s were added to support object-oriented programming: the [[system function]]s <source lang=apl inline>⎕NEW</source>, <source lang=apl inline>⎕CLASS</source>, <source lang=apl inline>⎕INSTANCES</source>, and <source lang=apl inline>⎕DF</source>, and [[system variable]]s <source lang=apl inline>⎕BASE</source> and <source lang=apl inline>⎕THIS</source>. Additionally, system functions <source lang=apl inline>⎕FIX</source> and <source lang=apl inline>⎕SRC</source> were added to support namespace scripts. | |||
Dyalog 11.0 also included primitive extensions: | |||
* [[Squad Indexing|Index]] (<source lang=apl inline>⌷</source>), possibly with [[Function axis|axis]], was added. A monadic case, called [[Materialise]], was also introduced in order to get a class's default property. | |||
* The [[Power (operator)|Power]] (<source lang=apl inline>⍣</source>) operator was added, with support for [[inverse]]s. | |||
* [[And]] (<source lang=apl inline>∧</source>) and [[Or]] (<source lang=apl inline>∨</source>) were extended to non-[[Boolean]]s as the [[LCM]] and [[GCD]] functions, respectively. | |||
== 12.0 == | |||
[http://help.dyalog.com/13.1/index_CSH.htm#RelNotes12.0/Key%20Features.htm Release notes], [http://docs.dyalog.com/12.0 documentation centre] | |||
Version 12.0 was released in August 2008. It introduced full [[Unicode]] support to Dyalog APL, so that all [[character]] data in the new Unicode edition consisted of Unicode code points. However, a Classic edition without Unicode (retaining Dyalog's old APL character set) was also released. As of version 18.0, every later Dyalog release has included both Classic and Unicode interpreters. Unicode characters were supported by three new [[internal type]]s: 1-byte, 2-byte, or 4-byte code points could be used depending on the maximum code point in the string. In each case a single element is a single code point, so the 1-byte and 2-byte encodings are compressed versions of [[wikipedia:UTF-32|UTF-32]], and are unrelated to variable-width encodings like [[wikipedia:UTF-8|UTF-8]] and [[wikipedia:UTF-16|UTF-16]]. This change affected the way character data was sorted, because Dyalog's character set did not have the same ordering as Unicode. The change to Unicode allowed a more standard way of implementing keyboard input to be used. | |||
In support of Unicode, the new [[system function]]s <source lang=apl inline>⎕AVU</source> (a Unicode version of <source lang=apl inline>⎕AV</source>) and <source lang=apl inline>⎕UCS</source> ([[Unicode Convert]]) were added. Two other system functions <source lang=apl inline>⎕FCOPY</source> (Copy File) and <source lang=apl inline>⎕FPROPS</source> (File Properties) were also added. | |||
The new version integrated Causeway tools including SharpPlot with the interpreter. Dyalog had purchased these tools in April 2007. It also marked the official adoption of SALT (Simple APL Library Toolkit) as a way to distribute code; SALT had been included in version 11.0 as an experimental feature. [[Component file]]s were enhanced both with Unicode support and file journalling to improve recovery. | |||
== 12.1 == | |||
[http://help.dyalog.com/13.1/index_CSH.htm#RelNotes12.1/Key%20Features.htm Release notes], [http://docs.dyalog.com/12.1 documentation centre] | |||
Version 12.1 was released in November 2009. Although it was a minor release, developed alongside the much more ambitious version 13.0, it still included new language features in addition to improvements to the language environment and [[.NET]] integration. | |||
The primitive function [[Table]] (<source lang=apl inline>⍪</source>) from [[ISO/IEC 13751:2001]], was added, as well as the [[I-beam]] operator (<source lang=apl inline>⌶</source>). I-beams for syntax colouring, parallel execution control, memory manager statistics, and exporting the workspace to .NET were provided; many more have been added since. Additionally, the [[system function]]s <source lang=apl inline>⎕XML</source>, for converting data to and from [[wikipedia:XML|XML]], and <source lang=apl inline>⎕FCHK</source>, to check and repair [[component file]]s, were added. The way the [[Outer Product]] operator computes the [[prototype]] of an [[empty]] result was changed: rather than using the right argument's prototype, in 12.1 it calls the operand once on the argument prototypes to determine the result prototype. | |||
== 13.0 == | |||
[http://help.dyalog.com/13.1/index_CSH.htm#RelNotes13.0/Key%20Features.htm Release notes], [http://docs.dyalog.com/13.0 documentation centre] | |||
Version 13.0 was released in April 2011. It featured extensive changes to the language including support for [[Complex number|complex]] and [[decimal float]] [[numeric type]]s, [[identity function]] primitives, support for [[regular expression]]s, extensions to existing primitives, and new [[Idiom recognition|idioms]]. | |||
Support for [[complex number]]s including [[numeric literal]] notation such as <source lang=apl inline>3J4</source>, arithmetic and [[Circle function|circle]] functions, and [[tolerant comparison]]s [[Equal]] and [[Not Equal]] (but not [[array ordering]]: [[total array ordering]] including ordering of complex numbers was added in [[#17.0|17.0]]). While almost all changes were [[Backwards compatibility|backwards compatible]], backwards compatibility in the [[Power]] function was broken: fractional powers of negative numbers, such as <source lang=apl inline>¯8 * ÷3</source>, could return different results. | |||
Support was added for 128-bit [[decimal floating point]] numbers (from [[wikipedia:IEEE 754|IEEE 754]]-2008), using the [[wikipedia:densely packed decimal|densely packed decimal]] (DPD) format internally. The [[system variable]] <source lang=apl inline>⎕FR</source> (Floating point Representation) was added, with the options 645 for 64-bit binary (5) floats and 1287 for 128-bit decimal (7) floats. Because of the increased precision of decfs, an additional system variable <source lang=apl inline>⎕DCT</source> was added to control [[comparison tolerance]] with decfs enabled, with the default value <source lang=apl inline>1E¯28</source>. When <source lang=apl inline>⎕FR</source> is 645, <source lang=apl inline>⎕CT</source> controls the comparison tolerance, but when it is 1287, <source lang=apl inline>⎕DCT</source> controls comparison tolerance. Support for interfacing with [[.NET]] decimal floats was also added. Because no complex decimal float type was added, version 13.1 broke Dyalog APL's strict numeric type hierarchy, introducing potential [[Array model#Numeric type coercion|changes in precision]] when placing values together in an array. | |||
Identity functions <source lang=apl inline>⊣</source> ([[Same]], [[Left]]) and <source lang=apl inline>⊢</source> ([[Same]], [[Right]]) were introduced. Monadic <source lang=apl inline>+</source>, formerly called [[Identity]], was changed to [[Conjugate]] (a change which did not break backwards compatibility, because prior to the introduction of [[complex number]]s the two functions were indistinguishable). Dyadic functions [[Take]] (<source lang=apl inline>↑</source>), [[Drop]] (<source lang=apl inline>↓</source>), and [[Squad Indexing|Index]] (<source lang=apl inline>⌷</source>) were extended to allow short left arguments, matching [[SHARP APL]]'s interpretation of the [[leading axis theory]]. | |||
A [[primitive operator]] (<source lang=apl inline>⍠</source>) was introduced as an alternative spelling of the existing [[system operator]] [[Variant]] (<source lang=apl inline>⎕OPT</source>), with a functionality similar to one sketched by [[Ken Iverson]] (<source lang=apl inline>:</source>)<ref>[[Ken Iverson|Kenneth E. Iverson]], [https://www.jsoftware.com/papers/APLDictionary.htm A Dictionary of APL], VI. Conjunctions, [https://www.jsoftware.com/papers/APLDictionary1.htm#colon Custom]. APL Quote Quad, Volume 18, Number 1, 1987-09.</ref> and implemented in [[J]] (<source lang=j inline>!.</source>). | |||
The [[Index Generator]] function was changed so that <source lang=apl inline>⍳⍬</source> would return <source lang=apl inline>⊂⍬</source> rather than <source lang=apl inline>⎕IO</source>. The former behaviour was considered a bug because <source lang=apl inline>⎕IO</source> is not a valid [[index]] into an array with [[empty]] [[shape]] (that is, a [[scalar]]). | |||
[[System operator]]s <source lang=apl inline>⎕S</source> and <source lang=apl inline>⎕R</source> were added to perform [[regex]] search and replace, respectively. The [[system function]] <source lang=apl inline>⎕RSI</source> (Reference Space Indicator) was implemented to return references to the namespaces from which functions were called: <source lang=apl inline>⎕RSI</source> is identical to <source lang=apl inline>⎕NSI</source> but returns [[namespace reference]]s instead of [[string]] names. System function <source lang=apl inline>⎕PROFILE</source> was added for line-level profiling of APL applications. | |||
Dyalog's Input Method Editor (IME), used to control keyboard layouts, was redesigned. | |||
[[Idiom recognition]] was improved: the append idiom <source lang=apl inline>,←</source> was extended and a new append idiom <source lang=apl inline>⍪←</source> was added, as well as a new join idiom <source lang=apl inline>⍪/</source>. Tack-[[reduce]] idioms <source lang=apl inline>⊣⌿</source>, <source lang=apl inline>⊣/</source>, <source lang=apl inline>⊢⌿</source>, and <source lang=apl inline>⊢/</source> to obtain the first or last [[major cell]] of an array, or the first or last column of a matrix, were added. Euler's idiom <source lang=apl inline>*○</source>, producing a unit complex number, was also added. | |||
[[Dyadic Grade]] with a [[Bind|bound]] left argument was improved by allowing a [[retained hash]] of that left argument, in order to avoid reprocessing it during every invocation of Grade. | |||
A new [[error message]], [[INTERNAL ERROR]] (99) was added. Several [[I-beam]]s related to Unix forks were added. | |||
== 13.1 == | |||
[http://help.dyalog.com/13.1/index_CSH.htm#RelNotes13.1/Key%20Features.htm Release notes], [http://docs.dyalog.com/13.1 documentation centre] | |||
Version 13.1 was released in April 2012. | |||
Error messages were extended with the potential for additional information beyond the type of error. The [[system variable]] <source lang=apl inline>⎕DMX</source> (Diagnostic Message eXtended) was added to access this information programmatically, as well as a help URL and the source code location corresponding to the error. The [[system function]] <source lang=apl inline>⎕FHIST</source>, to access information about a file's history (such as time of creation), was also added. | |||
New random number generators were added: the [[wikipedia:Mersenne twister|Mersenne twister]] algorithm, and querying the operating system. The algorithm could be selected with [[I-beam]] <source lang=apl inline>16807⌶</source>. Support was added for [[Enlist]] in [[selective assignment]]. | |||
New [[Idiom recognition|idioms]] <source lang=apl inline>0=⊃⍴</source> and <source lang=apl inline>0≠⊃⍴</source> (valid for <source lang=apl inline>⎕ML<2</source>) were added. Idiom support was backported to [[#13.0|13.0]] as well. | |||
[[Replicate]] was extended to allow extension of any right argument with length 1 along the replication axis, and not just a [[singleton]] right argument, matching [[APL2]]'s [[conformability]] rules for Replicate. | |||
== 13.2 == | |||
[http://help.dyalog.com/13.2/index_CSH.htm#RelNotes13.2/Key%20Features.htm Release notes], [http://docs.dyalog.com/13.2 documentation centre] | |||
Version 13.2 was released in January 2013. It included GUI improvements, a new Array [[Editor]], and minor improvements in the language and implementation. | |||
[[Selective assignment]] was was extended to allow [[bracket indexing]] and the [[Each]] operator, in order to match [[APL2]] behaviour. | |||
Performance of [[reduction]]s, [[scan]]s, and [[stranding]] was improved. In particular, stranding and the scans <source lang=apl inline>≤\</source>, <source lang=apl inline>>\</source>, <source lang=apl inline>≥\</source>, <source lang=apl inline>⍱\</source>, and <source lang=apl inline>⍲\</source> were all improved asymptotically, from <math>O(n^2)</math> to <math>O(n)</math> time in the length of the argument or number of stranded arrays. | |||
== 14.0 == | == 14.0 == | ||
Release [https://www.dyalog.com/dyalog/dyalog-versions/140.htm announcement], [http://docs.dyalog.com/14.0/Dyalog%20APL%20Release%20Notes.pdf | Release [https://www.dyalog.com/dyalog/dyalog-versions/140.htm announcement], [http://help.dyalog.com/14.0/index_CSH.htm#RelNotes14.0/Key%20Features.htm notes] ([http://docs.dyalog.com/14.0/Dyalog%20APL%20Release%20Notes.pdf pdf]) | ||
Version 14.0 was released in June 2014. It featured extensive changes to the Dyalog APL language as well as its implementation. | Version 14.0 was released in June 2014. It featured extensive changes to the Dyalog APL language as well as its implementation. | ||
Under the | Under the direction of [[Roger Hui]], who had been hired by [[Dyalog Ltd.]] in 2011, several features adapted from [[J]] were added. Version 14.0 began the adoption in Dyalog APL of array programming's [[leading axis model]], with built-ins [[Tally]] (<source lang=apl inline>≢</source>), [[Key]] (<source lang=apl inline>⌸</source>), and the [[Rank operator]] (<source lang=apl inline>⍤</source>). [[Function train]]s, another J feature, were also introduced. Of these, Rank differs from J's definition because it does not allow complete [[leading axis agreement]]—instead, two arguments must have identical [[frame]]s or one frame must be empty—and Key has an added monadic case, and differs in that the operand is passed a left argument indicating the unique element used. | ||
Further changes were made in conjunction with the introduction of [[Rank operator|Rank]] and [[leading axis theory]]. [[Index Of]] was [[High-rank set functions|extended]] (as in [[J]]) to allow a left argument of [[rank]] greater than 1, searching [[major cell]]s of the left argument. [[Mix]] was extended to increase the rank of each element in its argument to a common rank, rather than giving a [[RANK ERROR]] if they had unequal ranks. This change brought the behavior of Mix into alignment with the result array combination used by the [[Rank operator]] and [[Key]]. An unrelated change was to extend Mix with [[Function axis|axis]] to allow the axis to be a [[vector]] indicating the final positions of each axis of the argument elements (rather than only a [[singleton]] indicating the position of the first axis). This change was made to apply only with a [[migration level]] setting of at least 2; it was extended to all migration levels in [[#18.0|version 18.0]]. | |||
This version allowed [[monadic operator]]s to be manipulated more easily: beginning in 14.0, they can be [[Assignment|named]], grouped with parentheses, and displayed in the [[session]]. It also introduced a new way to form a monadic operator called [[right operand currying]]: a [[dyadic operator]] along with an [[operand]] to its right produces a [[derived operator]]. These changes did not extend to naming, parenthesizing, or displaying dyadic operators, nor to binding a left operant to a dyadic operator. | |||
Performance improvements to existing features were focused on [[Boolean]] arrays but also included work on [[indexing]] and [[scan]]s. A new [[I-beam]], <source lang=apl inline>8⌶</source>, was introduced to allow fast lookups on [[inverted table]]s, paralleling the extension to [[Index Of]] to allow lookups on non-inverted tables. | |||
The default [[migration level]] was changed from 0 to 1, with the effect that monadic <source lang=apl inline>∊</source> indicates [[Enlist]] rather than [[Type]] by default. The default [[random link]] was changed to use the [[wikipedia:Mersenne Twister|Mersenne Twister]] algorithm rather than a [[wikipedia:linear congruential generator|linear congruential generator]]. Additionally, the assignment <source lang=apl inline>⎕RL←0</source> was introduced to initialize random number generation with a seed taken from the operating system (which therefore differs between different APL instances). | |||
[[Component file]]s were enhanced with usability improvements in the component file [[system function]]s and the ability to create zipped (compressed) component files. | |||
== 14.1 == | == 14.1 == | ||
Release [https://www.dyalog.com/dyalog/dyalog-versions/141.htm announcement], [http://docs.dyalog.com/14.1/Dyalog%20APL%20Release%20Notes.pdf | Release [https://www.dyalog.com/dyalog/dyalog-versions/141.htm announcement], [http://help.dyalog.com/14.1/index_CSH.htm#RelNotes14.1/Key%20Features.htm notes] ([http://docs.dyalog.com/14.1/Dyalog%20APL%20Release%20Notes.pdf pdf]) | ||
Version 14.1 was released in June 2015. It added support for Apple Mac OS (now [[wikipedia:macOS|macOS]]) using the new [[RIDE]] [[session]] environment, which was also released for Windows and Linux. | Version 14.1 was released in June 2015. It added support for Apple Mac OS (now [[wikipedia:macOS|macOS]]) using the new [[RIDE]] [[session]] environment, which was also released for Windows and Linux. | ||
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== 15.0 == | == 15.0 == | ||
Release [https://www.dyalog.com/dyalog/dyalog-versions/150.htm announcement], [http://docs.dyalog.com/15.0/Dyalog%20Version%2015.0%20Release%20Notes.pdf | Release [https://www.dyalog.com/dyalog/dyalog-versions/150.htm announcement], [http://help.dyalog.com/15.0/index_CSH.htm#RelNotes15.0/Key%20Features.htm notes] ([http://docs.dyalog.com/15.0/Dyalog%20Version%2015.0%20Release%20Notes.pdf pdf]) | ||
Version 15.0 was released in June 2016. It added platform-independent [[portable file functions]] (<source lang=apl inline>⎕NEXISTS</source>, <source lang=apl inline>⎕NINFO</source>, <source lang=apl inline>⎕NGET</source>, <source lang=apl inline>⎕NPUT</source>, <source lang=apl inline>⎕NDELETE</source>, <source lang=apl inline>⎕MKDIR</source>, and <source lang=apl inline>⎕NPARTS</source>) and improved support for using APL source code from text files. It also added [[I-beam]]s for [[case conversion]] and creating [[hashed array]]s which behave identically to normal arrays but have faster performance when searched with [[set function]]s including [[Index-Of]] (<source lang=apl inline>⍳</source>) and [[Membership]] (<source lang=apl inline>∊</source>). | Version 15.0 was released in June 2016. It added platform-independent [[portable file functions]] (<source lang=apl inline>⎕NEXISTS</source>, <source lang=apl inline>⎕NINFO</source>, <source lang=apl inline>⎕NGET</source>, <source lang=apl inline>⎕NPUT</source>, <source lang=apl inline>⎕NDELETE</source>, <source lang=apl inline>⎕MKDIR</source>, and <source lang=apl inline>⎕NPARTS</source>) and improved support for using APL source code from text files. It also added [[I-beam]]s for [[case conversion]] and creating [[hashed array]]s which behave identically to normal arrays but have faster performance when searched with [[set function]]s including [[Index-Of]] (<source lang=apl inline>⍳</source>) and [[Membership]] (<source lang=apl inline>∊</source>). | ||
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== 16.0 == | == 16.0 == | ||
Release [https://www.dyalog.com/dyalog/dyalog-versions/160.htm announcement], [http://docs.dyalog.com/16.0/Dyalog%20Version%2016.0%20Release%20Notes.pdf | Release [https://www.dyalog.com/dyalog/dyalog-versions/160.htm announcement], [http://help.dyalog.com/16.0/index_CSH.htm#RelNotes16.0/Key%20Features.htm notes] ([http://docs.dyalog.com/16.0/Dyalog%20Version%2016.0%20Release%20Notes.pdf pdf]) | ||
Version 16.0 was released in June 2017. It added several new primitives as well as tools for working with [[wikipedia:JSON|JSON]] and [[wikipedia:Comma-separated values|CSV]] files. | Version 16.0 was released in June 2017. It added several new primitives as well as tools for working with [[wikipedia:JSON|JSON]] and [[wikipedia:Comma-separated values|CSV]] files. | ||
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== 17.0 == | == 17.0 == | ||
Release [https://www.dyalog.com/dyalog/dyalog-versions/170.htm announcement], [http://help.dyalog.com/17.0/ | Release [https://www.dyalog.com/dyalog/dyalog-versions/170.htm announcement], [http://help.dyalog.com/17.0/index_CSH.htm#RelNotes17.0/Key%20Features.htm notes] | ||
Version 17.0 was released in July 2018. It features significant work on tools for using APL and interfacing with other languages, as well as performance, and a relatively small number of new language features. | Version 17.0 was released in July 2018. It features significant work on tools for using APL and interfacing with other languages, as well as performance, and a relatively small number of new language features. | ||
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== 18.0 == | == 18.0 == | ||
[https://www.dyalog.com/dyalog/dyalog-versions/180.htm Release announcement], [https://help.dyalog.com/18.0/#RelNotes18.0/Key%20Features.htm notes] | |||
Version 18.0 | Version 18.0 was released in June 2020. It was developed in parallel with version 17.1, which had very few new features, and includes several new primitives and extensions to existing primitives. | ||
The following new primitive functions and operators are added: | The following new primitive functions and operators are added: | ||
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* [[Constant]] operator (<source lang=apl inline>⍨</source>), sharing a symbol with [[Commute]] | * [[Constant]] operator (<source lang=apl inline>⍨</source>), sharing a symbol with [[Commute]] | ||
Integers greater than 1 are now allowed in the right argument of [[Where]] (<source lang=apl inline>⍸</source>), matching the definition of | Integers greater than 1 are now allowed in the right argument of [[Where]] (<source lang=apl inline>⍸</source>), matching the definition of the corresponding [[primitive function]] in other APLs. A related extension allows integers greater than 1 in the left argument of [[Partitioned Enclose]] (<source lang=apl inline>⊂</source>), which produce empty partitions in the output. The extension to Partitioned Enclose makes it the first APL partitioning function which can produce empty partitions. | ||
Version 18.0 allows multi-line input in the [[session]] using the [[line editor]], and allows [[control structure]]s to be used in the session. Multi-line input is begun when a [[dfn]], [[namespace]], [[class]], or control structure is begun but not finished on the same line. | Version 18.0 allows enabling multi-line input in the [[session]] using the [[line editor]], and allows [[control structure]]s to be used in the session. Multi-line input is begun when a [[dfn]], [[namespace]], [[class]], or control structure is begun but not finished on the same line. It also allows syntax colouring and editing multi-line blocks in the session. | ||
New [[system function]]s for case folding and mapping (<source lang=apl inline>⎕C</source>) and date-time conversion are added. | New and extended [[system function]]s for case folding and mapping (<source lang=apl inline>⎕C</source>) and date-time conversion are added. | ||
Initial support for [[wikipedia:.NET Core|.NET Core]], Microsoft's cross-platform successor to the original [[.NET]] framework, has been added. | Initial support for [[wikipedia:.NET Core|.NET Core]], Microsoft's cross-platform successor to the original [[.NET]] framework, has been added. | ||
== References == | |||
<references/> | |||
{{APL dialects}}[[Category:Dyalog APL]][[Category:Lists]] | |||