[5] On 8 June, Head of Recruitment and Analysis David Downes left the club to join Blackpool as their new Sporting Director.
[6] On 19 June, manager Darren Moore and his backroom staff left the club by mutual consent.
[11] On 24 July, Xisco finalised his backroom staff with performance manager Miguel Gomila joining the club.
[13] On 1 August, Wednesday announced their new first year scholars of; Caiden Remy-Dee, Finley Hunt, Joe Emery, Jack Swales, Voldi Mbaya, Ari-Jae Shaw, Ernie Weaver, Dom Weston, Logan Stretch, Harris Lihe and Sutura Kakay.
[14] On 3 August, Wednesday confirmed TriggerHub as their new sleeve and back of shirt sponsor for the season.
[20] On 19 September, manager Xisco Muñoz confirmed that Lyle Taylor was training with the club.
[21] On 29 September, owner Dejphon Chansiri confirmed he would no longer put funds into the club.
[23] On 3 October, following the defeat to West Bromwich Albion, the Owls were left with their worst ever start to a season.
[24] On 4 October, manager Xisco Muñoz and his backroom staff parted company with the club.
[30] On 23 October, the club were fined £50,000 by The Football Association for fan conduct in the League One Playoffs win against Peterborough United the previous season.
[32] On 31 October, Dejphon Chansiri asked fans to raise £2m to help the club pay an outstanding debt to HM Revenue and Customs and cover wages.
[34] On 7 November, the club successfully appealed the red card against Barry Bannan following his dismissal against Bristol City.
[39] On 6 January, the upcoming game against Watford was postponed due to Wednesday's progression in the FA Cup.
[42] On 21 February, the club were charged with misconduct in relation to crowd control following their game against Coventry City on 20 January.
[52] On 11 April, Head of Academy Goalkeeping Nicky Weaver, announced he would be stepping down from his role at the end of the season.
[65] The club announced their first friendly, a testimonial match for former player Drew Talbot against Chesterfield on 2 June.