# Release Notes for the Pooled data set of 10th-21st Social Survey 1982-2016

All notable changes to this data package will be documented in this file.
The format is based on Keep a Changelog.

## Unreleased
-


## [3.1.0] - 2024-09-10 
### Added
-	Nothing
### Changed
-	Nothing, only fixes
### Removed
-	Nothing
### Fixed
-	Partially fixed values of following variables due to errors in previous recoding/generation:
	adv01a
	adv01b
	adv01c
	adv01d
	adv01e
	adv01g
	adv01i
	adv01j
	adv01k
	adv01l
	adv01m
	adv01n
	adv01o
	adv01p
	adv01q
	adv03a
	adv03b
	adv03c
	adv03d
	adv03e
	adv03g
	adv03i
	adv03q
-	Fixed value labels for three variables previously without or with erroneous values labels:
	stu38_h
	job11_h
	job12_h
-	Updated two variable questionnaires (for 17th and 18th social survey) (DE) to include adv03* variables.
-	Updated links within method report and overview documents related to latest version of dataset

## [3.0.0] - 2023-04-18 (initial release date of the extended pooled data set of Social Survey)
### Added
-	Added individual data download SUF and download CUF - based on pooled SUF-data of 10th - 21st social survey
-	Added data and methods report (DE)
-	Added data package overview (DE/EN)
-	Added documentation of harmonised variables and survey-related overview of all variables in the data set (DE)
- 	Added twelve variable questionnaires (for each of 10th - 21st social survey) (DE)
### Changed
-	Nothing, initial release
### Removed
-	Nothing, initial release
### Fixed
-	Nothing, initial release

## [2.0.1] - 2023-02-28
### Added
-	Nothing, initial release
### Changed
-	for ssy18-ssy20: change varname for own expenses "Sparetime, Pub, Disco etc." 		fin02i => fin02l
-	for ssy18-ssy20: change varname for non-cash expenses "Sparetime, Pub, Disco" etc." fin03i => fin03l
- 	for ssy21: change varname for own expenses "Sparetime, Pub, Disco etc."  			fin02h => fin02l
- 	for ssy21: change varname for non-cash expenses "Sparetime, Pub, Disco etc."  		fin03h => fin03l
-	for ssy21: change varname for own expenses "Phone, Porto, Communication ..." 		fin02i => fin02h
-	for ssy21: change varname for non-cash expenses "Phone, Porto, Communication ..." 	fin03i => fin03h
-	Modified individual data download SUF and download CUF - based on pooled SUF-data of 13th - 21st social survey
-	Modified documentation of harmonised variables and survey-related overview of all variables in the data set (DE)
- 	Modified four variable questionnaires (for each of 18th - 21st social survey) (DE)
### Removed
-	Nothing, initial release
### Fixed
-	Nothing, initial release


## [2.0.0] - 2022-06-30 (initial release date of the extended pooled data set of Social Survey)
### Added
-	Added individual data download SUF and download CUF - based on pooled SUF-data of 13th - 21st social survey
-	Added data and methods report (DE)
-	Added data package overview (DE/EN)
-	Added documentation of harmonised variables and survey-related overview of all variables in the data set (DE)
- 	Added nine variable questionnaires (for each of 13th - 21st social survey) (DE)
-	Added historical overview of actors, methods, topics and project-related publications of the survey series
### Changed
-	Nothing, initial release
### Removed
-	Nothing, initial release
### Fixed
-	Nothing, initial release

## [1.0.1] - 2021-06-17
## Errata
- Data:
	- Unfortunately, we found errors in some variables: 
	For the variable dem11a_h (nationality), there was an error in aggregation for data from the 17th Social Survey (2003), 
	so that students with only German nationality were assigned to those with dual nationality (German and other).
	The variables abr02a to abr02d (type of stay abroad) were not aggregated correctly for the survey years 2003 and 2009, 
	so that students who had not answered this question were also grouped into the respective types of stay abroad.
	For the variable ped04 (time of vocational training), the missings were not set correctly for the survey year 2016. 
	The same applies to the variables abr08a_v21 to abr10i_v21 (sources of funding for study abroad).


## [1.0.0] - 2021-03-22 (initial release date)
### Added
-	Added individual data download SUF and download CUF - based on pooled SUF-data of 17th - 21st social survey
-	Added data and methods report
-	Added data package overview (DE/EN)
-	Added documentation of harmonised variables and survey-related overview of all variables in the data set
- 	Added five variable questionnaires (for each of 17th - 21st social survey)
### Changed
-	Nothing, initial release
### Removed
-	Nothing, initial release
### Fixed
-	Nothing, initial release