Release notes for EiffelStudio 7.0

  1. Graphical environment
    1. What's new
    2. Improvements
    3. Changes
    4. Bug fixes
  2. Compiler
  3. Debugger
    1. .NET debugging
    2. Graphical environment
    3. Developer changes
  4. EiffelBuild
  5. Libraries
    1. EiffelBase
    2. EiffelVision2
    3. EiffelStore
    4. Argument parser

Graphical environment

What's new

  • EiffelRibbon: a Windows specific library and tool to add a ribbon to your EiffelVision2 applications.
  • Debian packages available for downloads.
  • Added external contributions: Decimal library, Json parser, arbitrary precision mathematics, encryption (SHA1, MD5, x509, ...).
  • Added previews of libraries: sqlite3, regular expression, ...
  • Added a command line option "-tests" to run all associated Autotest tests from the command line.


  • Better integration with the latest Linux Desktop environments: Unity from Ubuntu and KDE 4.0.
  • SCOOP speed improvements.
  • Added support for .NET 4.0 runtime.


  • BIT type is now obsolete.
  • Location of precompiled libraries has been moved to a user specific directory that can be referenced via the $ISE_PRECOMP variable in your project configurations. This addresses some permission issues depending on how and under which user EiffelStudio was installed.

Bug fixes

  • Fixed a display issue of Unicode characters when reporting an error. (bug#17661).
  • Fixed a pick and drop issue where it could be confused (e.g. select ARRAY in editor, switch to clickable format, try to pick various elements, it would always pick BOOLEAN instead) (bug#17666).
  • Fixed issue with pick and drop of a feature from an override class whose position is further away than the original class would not scroll to this feature (bug#17406).
  • Fixed some issues of window positioning when using EiffelStudio with multiple monitors.
  • Fixed a case where you could have 2 editor panes open on the same class.


  • Click here for the compiler release notes.


.NET debugging

  • It is now possible to use the EiffelStudio debugger to debug Eiffel applications targeted to Microsoft .Net 4.0.

Caution: Currently, to debug Eiffel targeted to Microsoft .Net 4.0, it is necessary to set the preference "debugger.dotnet.keep_stepping_info_dotnet_feature" to "False" in order to avoid problems when using the debugger's "Step into" command.

Graphical environment

  • Fixed a problem with missing tool content when an assertion violation was ignored.
  • Instances of classes IMMUTABLE_STRING_* are now correctly displayed in the debugger's tools.
  • Added a toolbar button for the "Attach" command.
  • The exception trace is now included when watch evaluation fails due to an internal error.
  • Fixed various issues in which the debugger is unable to retrieve information about an object, especially from the current object.
  • Fixed various watch evaluation issues involving argument variables.

Developer changes

  • The {DB_BREAKABLE_POINT_INFO}.text is no longer truncated, allowing the retention of the full line of Eiffel code.


  • Click here for the EiffelBuild release notes.



  • Prevented creation of instances of PROCEDURE, FUNCTION, and PREDICATE using a creation instruction. An agent has to be created via the agent expression provided at the language level.
  • Fixed a potential reporting of version mismatch when there is a mismatch but actually no version changes.
  • Added TABLE_ITERATOR and TABLE_ITERATION_CURSOR to provide a common way for TABLE like datastructure to iterate over using the new across loop.
  • Improved speed of replace_substring_all when replacing a smaller string by a larger one.
  • Added support for string searches of a STRING_32 string (previously it was limited to STRING_8).
  • Fixed {IMMUTABLE_STRING_XX}.shared_substring which would not be properly processed by many string operations (e.g. item, item_code, code, ...).
  • Changed the behavior of {STRING_XX}.twin to create a new string where the capacity is set to the count of the twinned strings and not to its capacity. In scenarios where a large buffer is used but a frequent twin is used it has a big impact on speed and memory usage.
  • Fixed an issue with {FILE}.read_to_string which would not change the hash_code of the string given as argument.
  • Improved speed of HASH_TABLE lookups.
  • Added {POINTER}.is_default_pointer.
  • Excluded class BIT_REF from the default setup. In order to use type BIT one has to define a variable USE_BIT.
  • Made {LINKED_STACK}.duplicate void-safe, made a postcondition in {INTERVAL}.intersection void-safe.



  • Added support for INTEGER_xx and NATURAL_xx datatypes.
  • Added support for transactions in the MySQL handle.
  • Various speed improvements for SQL queries.
  • Added support for multiple database connections.
  • Added support for immutable and unicode strings.
  • Added support for GUID type.
  • Added support of DECIMAL type.

Argument parser

  • Made feature {ARGUMENT_BASE_PARSER}.copyright deferred.

Click here to check out what was new in other versions

cached: 01/22/2020 7:11:50.000 PM