7df7b02014-10-03Per Hedbor Pike 8.1: Changes since Pike 8.0 (scratch area for future release notes)
949f722016-07-22Henrik Grubbström (Grubba) ------------------------------------------------------------------------
2ac4992011-03-09Martin Stjernholm 
dca6762014-11-03Martin Nilsson New language features --------------------- o Unlimited character constant size. There is no longer any limit to the size of character constants, e.g. 'acdefghijk' creates the bignum 0x61636465666768696a6b.
a72ec62016-01-04Per Hedbor o 'auto' type added. This is much like a strict typed mixed. The actual type is deduced compile-time.
8e10492016-01-31Henrik Grubbström (Grubba)  Typical use is as the type for variables in foreach when looping over complexly typed values, or as the type in macro-defined functions and similar.
a72ec62016-01-04Per Hedbor  auto can be used as return type for a function, it will be the logical or of all the types of the return statements in the function. o typeof(X) can now be used as a type. The main use case is in macros, but it might be useful for other things as well (as an example in a typedef). typedef typeof(Val.true)|typeof(Val.false) bool; typeof, when used like this, behaves very much like the C++ decltype() expression.
854a972016-06-03Per Hedbor o ** operator added. It's exponentiation and works with most combination of numerical types (int,float,Gmp.mpq,Gmp.mpf,Gmp.mpz) `** and ``** operator overloading functions added. This introduces one incompatible change: Previously the "pow" function called a "_pow" function in the first argument if it was an object. It has now been changed to also use `** (or, rather, pow()
56daad2016-06-05Henrik Grubbström (Grubba)  is now implemented using predef::`**()).
854a972016-06-03Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba) o New syntax for literal strings. o #pragma disassemble The byte code output is now interleaved with the generated machine code on selected architectures. o Complain about redundant backslash escapes. o '__weak__' keyword added. o Function local function declarations are now statements (and not expressions). This means that there is no longer any need to terminate them with a semicolon. o Complain about shadowed variant functions. o Machine code support for more architectures. There's now machine code support for arm32 and arm64. o Fixed multiple integer over- and underflow bugs. Incompatible changes -------------------- o Gz.crc32 and Nettle.crc32c now only return positive results. o glob() has changed. The main incompatibilities are that [ and \ are now special characters in the pattern, and if you check the return value against 1 instead of checking if it's true, and use an array as the first argument you will have to change your code. This is in order to extend the glob function to cover what 'standard' glob functions do: glob() now accepts quotes (\* to match a single *, as an example) and handles ranges ([abc] for a, b or c, [a-z0-9] for a single character between a and z or 0-9 You can also negate a range using ^ or ! ([^a-zA-Z] as an example). When the first argument (the pattern) to glob is an array, glob now returns which pattern in the array matched. o hash() has been changed to use siphash. The old hash function is available under the name hash_8_0(). Note that this is not a cryptographic hash function. o Stdio.UDP()->send() no longer throws errors on EMSGSIZE and EWOULDBLOCK. o If a thread exits with by throwing, the thrown value is propagated to wait(). o String.trim_all_whites() renamed String.trim(). New modules ----------- o ADT.Scheduler o ADT.TreeScheduler o Apple.Keychain o __builtin.Sql o CompilerEnvironment()->lock() o Crypto.ECC.Curve.Point o Filesystem.Zip o Function.bind() o Standards.HPack (RFC 7541) o Stdio.FakePipe o Parser.Markdown o Concurrent.Future and Concurrent.Promise These are used to simplify handling of asynchronous results. o Crypto.Checksum This module collect non-cryptographic checksums. Support for crc32, adler32 and Castagnoli CRC (CRC32C). NB: In the future these may be amended to support the Crypto.Hash API. o Protocols.EngineIO & Protocols.SocketIO o Protocols.HTTP2 o Bittorrent.DHT o Standards.MsgPack o Web.Auth & Web.Api New features ------------ o predef::gc() gc() called with a weak mapping as argument now removes weak references that are only held by that mapping. o predef::sprintf() sprintf() now replaces %m with strerror(errno()). o ADT.Heap - An indirection object ADT.Heap.Element has been added to make it possible to optimize several heap operations. - Added low_pop(). o Crypto & Nettle - Added Curve25519 and EdDSA25519. o Filesystem.Monitor The filesystem monitoring system now uses accelleration via Inotify et al. o Gmp - mpf is now implemented using gmpf if the library is available. - Improved support for GMP 5.0 and later. o GTK2 Multiple runtime fixes. o JOSE (JSON Object Signing and Encryption) Some low-level API support has been added to the Crypto and Web modules to support parts of RFC 7515 - 7520. o MasterObject - Protect against the same file being compiled concurrently in multiple threads. - cast_to_program() and cast_to_object() should now be thread safe. o Parser.Pike Support new language features. o Protocols.WebSocket Multiple API changes.
7a82ac2016-01-26Martin Nilsson o Random rewrite The random functions have been rewritten to ensure security by
f8800b2016-01-26Henrik Grubbström (Grubba)  default. random_string() and random() now get their data directly from the operating system random generator, i.e. /dev/urandom on most unixen. This is about half the speed compared with the random_string function in Pike 8.0, but is now as secure as the system random generator.
7a82ac2016-01-26Martin Nilsson  For consumers of random data that have additional requirements, different random generators are exposed in the new module
f8800b2016-01-26Henrik Grubbström (Grubba)  Random. The module has the following generators:
7a82ac2016-01-26Martin Nilsson  - Random.Interface This is not actually a generator, but an interface class that is inherited into all the other generators. It contains code that can turn the output from the random_string method into random numbers with different limits without introducing bias. It also contains code for all the different variants of random() on different types. This is currently not possible to implement in Pike code, as the typing is too complicated and it is not possible to access private/protected _random methods in objects. - Random.System This generator maps directly on top of the system random generator. This is the default generator used for random() and random_string(). - Random.Deterministic
f8800b2016-01-26Henrik Grubbström (Grubba)  This generator creates the same sequence of random numbers for a
7a82ac2016-01-26Martin Nilsson  given seed, with good pseudo random properties. - Random.Hardware
f8800b2016-01-26Henrik Grubbström (Grubba)  This generator accesses the hardware random generator, when
7a82ac2016-01-26Martin Nilsson  available. - Random.Fast This generator takes entropy from the Random.System, but feeds
f8800b2016-01-26Henrik Grubbström (Grubba)  it into a cryptographic pseudo random number generator to be
7a82ac2016-01-26Martin Nilsson  able to output data fast. This is not the default random number
8aa0f52016-03-19Martin Nilsson  generator to avoid loading crypto code on every startup.
7a82ac2016-01-26Martin Nilsson 
f8800b2016-01-26Henrik Grubbström (Grubba)  Comparing the different generators with each other gives the following approximate speeds on a Linux system with hardware random support:
7a82ac2016-01-26Martin Nilsson  Random.System 1.0 Pike 8.0 random_string 0.45 Random.Hardware 0.25 Random.Fast 0.20 Random.Deterministic 0.20
8aa0f52016-03-19Martin Nilsson  Objects implementing the _random lfun now get two arguments, the current random_string() and random() functions. This is convenient for C-level functions that doesn't have to look up functions themselves. Note that it is possible for a user to replace these with non-conforming functions (returning values of the wrong type, strings of the wrong length or shift size, and values outside the given range) or even non-functions. All code in Pike that uses random now uses the current random functions (though in some cases fixed at object creation). This allows for repeatable results if the random functions are replaced with a deterministic random generator, such as Random.Deterministic. Example: Random.Deterministic rnd = Random.Deterministic( seed ); add_constant( "random_string", rnd->random_string ); add_constant( "random", rnd->random );
866ddb2016-11-02Henrik Grubbström (Grubba) o Sql
b7ac832016-07-10Henrik Grubbström (Grubba) 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Most Sql C-modules converted to cmod.
b7ac832016-07-10Henrik Grubbström (Grubba) 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Added next_result().
7a82ac2016-01-26Martin Nilsson 
866ddb2016-11-02Henrik Grubbström (Grubba)  - ODBC & tds: Support more datatypes.
9654e02015-10-15Martin Nilsson 
866ddb2016-11-02Henrik Grubbström (Grubba)  - ODBC: Support big_typed_query().
9654e02015-10-15Martin Nilsson 
866ddb2016-11-02Henrik Grubbström (Grubba)  - pgsql: Lots of changes and fixes.
781fcd2016-05-13Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba) o SSL
781fcd2016-05-13Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Support session tickets.
781fcd2016-05-13Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Support Negotiated FF-DHE.
781fcd2016-05-13Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Support client certificates.
781fcd2016-05-13Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Support ALPN.
781fcd2016-05-13Per Hedbor 
866ddb2016-11-02Henrik Grubbström (Grubba)  - Prefer AEAD suites to CBC suites.
920fe52016-07-01Martin Nilsson 
866ddb2016-11-02Henrik Grubbström (Grubba)  - SSL.File supports set_buffer_mode(). o Standards.PKCS Support PKCS#8 private keys. o String.Buffer & Stdio.Buffer Added _search(). o The self testing framework now supports *.test-files. o Unicode 8.0.0.
949f722016-07-22Henrik Grubbström (Grubba) 
35e4fd2016-02-01Henrik Grubbström (Grubba) 
32323f2016-03-27Henrik Grubbström (Grubba) Deprecated symbols and modules ------------------------------ o Sql.mysql_result and Sql.mysqls_result have been deprecated. Use Sql.Result instead.
866ddb2016-11-02Henrik Grubbström (Grubba) o call_function() has been deprecated. Use `()() instead.
32323f2016-03-27Henrik Grubbström (Grubba) 
dca6762014-11-03Martin Nilsson Removed features and modules ---------------------------- o Compatibility for Pike versions before 7.8 is no longer available.
a72ec62016-01-04Per Hedbor o GTK1 library is deprecated, so glue code is removed.
83a8f52015-11-09Martin Nilsson C-level API changes ------------------- o The contract for functions is now changed so that a function is no longer required to clean the stack. The topmost value of the stack will be regarded as the return value and the rest of the items on the stack, compared to before the function arguments were pushed, will be popped and discarded. Efuns still have to clean their stack as previously.
83a3202016-01-29Martin Nilsson o Removed add_function, pike_add_function, pike_add_function2,
4903e82016-01-30Martin Nilsson  simple_add_variable, map_variable and MAP_VARIABLE. This removes the remaining few API:s where text types were used. Use ADD_FUNCTION and
f1dbf02016-01-29Martin Nilsson  PIKE_MAP_VARIABLE instead.
83a3202016-01-29Martin Nilsson 
1180002016-03-19Martin Nilsson o Removed the functions my_rand and my_srand. Use the random functions
8aa0f52016-03-19Martin Nilsson  on the stack for _random lfuns, the push_random_string or look up
1180002016-03-19Martin Nilsson  the random function from get_builtin_constants(). For deterministic pseudo random, create a private Random.Deterministic object.
8aa0f52016-03-19Martin Nilsson 
866ddb2016-11-02Henrik Grubbström (Grubba) o The preprocessor has been converted into a cmod, and been modified to use more standard Pike datatypes. o The preprocessor-specific hashtable implementation has been removed. o The gdb_backtraces() function is now available also --without-debug. o There's now support to block mapping hashtables from being shrunk on map_delete(). Documentation ------------- o RFC references added. o Character encoding issues fixed. o Added @enum/@endenum markup. o Support undocumented enums with documented constants.
35e4fd2016-02-01Henrik Grubbström (Grubba) 
dca6762014-11-03Martin Nilsson Building and installing ----------------------- o GMP 4.1 or later is now required.
9721ab2016-01-11Martin Nilsson  o C99 assumed The configure tests will not check for functions defined in C99 anymore and C99 compiler support is assumed.