5月份大选后Cameron曾表示要继续收紧学生签证，今天(13/07/2015)，HO发布了最新immigration rules修改案 HC297。其中一部分内容都没有给通常的21 days’ notice，所以是今天发布明天生效 
具体哪些请参考文件自行对号入座。
Statement of Changes in Immigration Rules:Written statement - HCWS95
http://www.parliament.uk/business/publications/written-questions-answers-statements/written-statement/Commons/2015-07-13/HCWS95/
https://www.gov.uk/government/news/tier-4-visas-immigration-rules-changes
简单列举几条主要影响T4的地方（主要是继续打压college）
• Increase the maintenance requirements for Tier 4 (General) and Tier 4 (Child) students.
• Expand the area in which Tier 4 students have to demonstrate a higher maintenance requirement for London to include the University of London, or institutions wholly or partly within the area comprising the City of London and the former Metropolitan Police District.
• Apply the same maintenance requirements to all Tier 4 (General) students, regardless of whether they are already living in the UK, except Doctorate Extension Scheme students.
• Make all time spent in the UK as a Tier 4 student count towards Tier 4 time limits.
• Change the conditions for those given leave to enter or remain to study at
publicly-funded further education colleges, to prohibit work.
• Prevent college students from extending their stay in Tier 4 or switching into any other points-based route in-country.
• Allow university students to extend their studies at the same academic level, but only if the course is linked to the previous course and the university confirms that the course supports the student’s genuine career aspirations.
• Prevent Tier 4 (General) Students from spending longer than two years in the UK studying further education courses.
• Allow a Tier 4 visa to be issued in line with a student’s intended date of travel.
stop Tier 4 dependants from taking a low or unskilled job, but allow them to take part-time or full-time skilled work (from the autumn)
BTW，老规矩，请不要询问任何和spouse与dependant相关的家庭路线问题，因为基本没什么变化。
对十年的影响就是，继续釜底抽薪（under degree 3年变两年，5年限制变严格），但10年不是PBS，所以可以继续境内申请
