The story
2005–06 season
Halmstad played in HockeyAllsvenskan this season, but due to the club's bankruptcy the team was disqualified. In Kvalserien, Malmö and Skellefteå were promoted to play in Elitserien for the 2006–07 season. Leksand and Södertälje were both relegated from Elitserien.
Arboga and Hammarby had to play the relegation rounds but managed to keep their spots in the league, coming in second respectively third after Huddinge, who had been relegated one year previously, but made it back after one year in Division 1.
2006–07 season
In the qualification rounds for Elitserien, Södertälje advanced to Elitserien while Malmö only finished third and was relegated to HockeyAllsvenskan.
This season, Huddinge and Arboga had to play in the qualification series to stay in the league, but Arboga decided not to play because of their bad economic state of affairs. This meant that Arboga joined Division 1 in the 2007–08 season. Huddinge won the qualification series and thus continued to play in HockeyAllsvenskan for yet another season, while Borås finished second and advanced to HockeyAllsvenskan.
2007–08 season
In a closely played qualification battle for Elitserien, Rögle advanced to Elitserien at the cost of Mora who finished fourth and was relegated to HockeyAllsvenskan.
Huddinge and Hammarby finished last in the league this year and had to play in the qualification series to stay up. Hammarby, however, decided not to play because of economic issues (the team later went bankrupt). Huddinge did not survive the qualification group which was won by the following season's newcomers Troja/Ljungby and Mariestad. However, in the summer, Nyköping was relegated to Division 1, not meeting the financial demands for being approved to play in the HockeyAllsvenskan (known as the elite license), and Huddinge was promoted to fill in that spot.
2008–09 season
The 2008–09 season became the last season with sixteen teams in HockeyAllsvenskan. On May 30, 2008, the board of the SIHA decided to decrease the number of teams to fourteen, starting from the 2009–10 season.
In Kvalserien, none of the four top teams from HockeyAllsvenskan succeeded in qualifying for the highest division this year. Instead, the two Elitserien teams Södertälje and Rögle managed to keep their spots.
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Because of the decreased number of teams for the next season, the last-placed team, Mariestad, was directly relegated to the lower division instead of joining the teams placed 14th and 15th who had to play the qualification group against four teams from Division 1. With just one team qualifying for HockeyAllsvenskan this season, neither Nybro (third) nor Huddinge (fourth) succeeded in staying in the second division. Instead, Örebro took the available spot in HockeyAllsvenskan for the 2009–10 season.
2009–10 season
In Kvalserien, AIK managed to promote to Elitserien at the expense of Rögle.
Sundsvall and Oskarshamn ended up at the bottom of the league table and had to play a qualification series to requalify for HockeyAllsvenskan. There Tingsryd came in second after Oskarshamn, earning promotion at the expense of Sundsvall. However, in June the Swedish Ice Hockey Association (SIHA) decided not to grant Björklöven elite license for the upcoming season due to financial concerns and thus Björklöven was relegated to Division 1 and Sundsvall was given a spot in HockeyAllsvenskan next season.
With AIK advancing to the Elitserien, and no other team from the area in the league, nor any new one promoted from Division 1, this meant that the 2010–11 season would be the first time ever with no team from the Stockholm area in the second-level league of Swedish ice hockey.
2010–11 season
In Kvalserien, Växjö managed to promote to Elitserien at the expense of Södertälje. (With Södertälje back in HockeyAllsvenskan, the Stockholm area was re-established on the second level.)
The qualification system for the teams 4–7 to qualify for Kvalserien was changed this season. Instead of a kind-of-playoff series, a "pre-qualification" system was used. The 4th ranked team from HockeyAllsvenskan started with 4 points, the 5th ranked team with 3 points, the 6th ranked team with 2 points, and the 7th ranked team with 1 point. The teams met each other two times, giving a total of 6 rounds. The 7th ranked team, which was Mora, won the pre-qualification and thus reached the Kvalserien.
Troja/Ljungby and Tingsryd ended at 13th and 14th place respectively and thus were forced to play in the Kvalserien for HockeyAllsvenskan. Troja/Ljungby and Tingsryd ended 1st and 2nd respectively in the Kvalserien and thus stayed in HockeyAllsvenskan for the 2011–12 season. This also meant that no team from Division 1 qualified for HockeyAllsvenskan this season.
2011–12 season
In Kvalserien, Rögle promoted to Elitserien at the expense of Djurgården. Rögle became the first HockeyAllsvenskan playoff team in history to promote to Elitserien, a feat which Örebro HK subsequently duplicated in 2013.
In Kvalserien for HockeyAllsvenskan, Borås re-qualified for HockeyAllsvenskan and Karlskrona promoted to HockeyAllsvenskan for the first time in the club's history, at the expense of Sundsvall. However, the SIHA did not grant Borås elite license for the 2012–13 season and Borås were therefore relegated to Division 1 while Asplöven, the 3rd-ranked team from the HockeyAllsvenskan Kvalserien, took over their spot for the next HockeyAllsvenskan season.
From Wikipedia’s article on HockeyAllsvenskan, shared under CC BY-SA 4.0.4